{"title":"Bladder Pump System — 1.66\"","description":"\u003cp\u003e\u003cstrong\u003eEverything that fits a 1.66\" bladder pump\u003c\/strong\u003e — the standard diameter for 2\" monitoring wells.\u003c\/p\u003e\u003cp\u003eA complete setup is the pump, a \u003ca href=\"\/products\/geotech-portable-bladder-pumps-controller-pro\"\u003egeocontrol PRO controller\u003c\/a\u003e, bladders, bonded tubing and a reel. Every item on this page is sized to 1.66\", so anything you add to your cart from here will work together.\u003c\/p\u003e","products":[{"product_id":"geotech-bladder-pump","title":"Geotech GeoControl Pro \u0026 Bladder Pump Kits","description":"\u003cp\u003eThe \u003cstrong\u003egeocontrol PRO™\u003c\/strong\u003e is the controller that drives a Geotech bladder pump. It meters compressed air into the pump on a timed cycle — you set the drive and vent intervals, and the controller repeats them precisely, which is what produces the steady, low-turbidity flow that low-flow sampling protocols require.\u003c\/p\u003e\n\u003cp\u003eSupplied in a field case with a 12V cord and battery. Pressure range 0–100 PSI, cycle timing 0–180 seconds.\u003c\/p\u003e\n\u003ch3\u003eKit or controller only\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump kits\u003c\/strong\u003e pair the controller with a pump in your well diameter — 1.66\", 0.85\" or 0.675\" — and include the battery. The straightforward way to start from nothing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePFAS-free kits\u003c\/strong\u003e are the same package built with documented fluoropolymer-free wetted materials, for programs where PFAS is an analyte. Same price as standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController only\u003c\/strong\u003e ships without a pump or battery, for anyone adding a second controller to an existing fleet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompleting your system\u003c\/h3\u003e\n\u003cp\u003eBeyond the controller and pump you will need bladders, bonded tubing and a reel — all sized to your pump diameter. Each diameter has a collection gathering everything that fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" Bladder Pump System'\u003e1.66\" Bladder Pump System\u003c\/a\u003e — for 2\" wells\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-0-85\" title='0.85\" Bladder Pump System'\u003e0.85\" Bladder Pump System\u003c\/a\u003e — for 1\" wells\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-0-675\" title='0.675\" Bladder Pump System'\u003e0.675\" Bladder Pump System\u003c\/a\u003e — for 3\/4\" wells and direct-push points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAccessories\u003c\/h3\u003e\n\u003cp\u003eBladders, bonded tubing, drop tube intake assemblies, quick connects and coated suspension cable are all stocked separately — see the full \u003ca href=\"https:\/\/envirotechonline.com\/collections\/geotech-bladder-pump-parts-accessories\" title=\"Geotech Bladder Pump Parts \u0026amp; Accessories\"\u003eBladder Pump Parts \u0026amp; Accessories\u003c\/a\u003e range. Bladders are a consumable, so keep spares sized to your pump; note that only the polyethylene bladders are PFAS-free, as PTFE is a fluoropolymer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBladders — \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-bladders-1-66\" title='1.66\" Bladders'\u003e1.66\"\u003c\/a\u003e | \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-bladders-0-85\" title='0.85\" Bladders'\u003e0.85\"\u003c\/a\u003e | \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-bladders-0-675\" title='0.675\" Bladders'\u003e0.675\"\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eBonded tubing — \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-tubing-1-66\" title='1.66\" Bonded Tubing'\u003e1.66\"\u003c\/a\u003e | \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-tubing-0-675-amp-0-85\" title='0.675\" and 0.85\" Bonded Tubing'\u003e0.675\" \u0026amp; 0.85\"\u003c\/a\u003e, plus the wider \u003ca href=\"https:\/\/envirotechonline.com\/collections\/geotech-tubing\" title=\"Geotech Tubing\"\u003eGeotech Tubing\u003c\/a\u003e range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eParts \u0026amp; service\u003c\/h3\u003e\n\u003cp\u003eBoth repair-parts pages carry the \u003cstrong\u003eexploded parts diagram\u003c\/strong\u003e with numbered callouts taken from Section 7 of the manual, so you can identify a component before ordering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-geocontrol-pro-repair-parts\" title=\"geocontrol PRO Repair Parts\"\u003egeocontrol PRO repair parts\u003c\/a\u003e — compressor, solenoid, PCB assembly, pressure gauge, front-panel controls and hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-1-66-portable-bladder-pump-repair-parts\" title='1.66\" Portable Bladder Pump Repair Parts'\u003e1.66\" portable bladder pump repair parts\u003c\/a\u003e — O-ring service kits, check balls, caps, screens and intake assemblies, in standard and PFAS-free builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGeotech Service can advise on whether a unit is worth repairing in the field: \u003cstrong\u003e1-800-833-7958\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/pdf\/ground_water_sampling_equipment\/geocontrol_pro.pdf\" title=\"Specifications\" rel=\"noopener\" target=\"_blank\"\u003eSpecifications\u003c\/a\u003e | \u003ca href=\"https:\/\/www.geotechenv.com\/Manuals\/Geotech_Geocontrol_PRO_Pump_Controller.pdf\" title=\"Manual\" rel=\"noopener\" target=\"_blank\"\u003eInstallation \u0026amp; Operation Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"1.66\" Pump Kit — PFAS-Free (w\/ GeoControl Pro \u0026 Battery)","offer_id":44580711891134,"sku":"91150027","price":3752.5,"currency_code":"USD","in_stock":true},{"title":"0.85\" Pump Kit — PFAS-Free (w\/ GeoControl Pro \u0026 Battery)","offer_id":44580711923902,"sku":"91150028","price":3752.5,"currency_code":"USD","in_stock":true},{"title":"0.675\" Pump Kit — PFAS-Free (w\/ GeoControl Pro \u0026 Battery)","offer_id":44580711956670,"sku":"91150029","price":3752.5,"currency_code":"USD","in_stock":true},{"title":"GeoControl Pro Controller Only — No Pump, No Battery","offer_id":44580712087742,"sku":"91150017","price":3040.0,"currency_code":"USD","in_stock":true},{"title":"1.66\" Pump Kit — Standard (w\/ GeoControl Pro \u0026 Battery)","offer_id":48703729238206,"sku":"91150011","price":3752.5,"currency_code":"USD","in_stock":true},{"title":"0.85\" Pump Kit — Standard (w\/ GeoControl Pro \u0026 Battery)","offer_id":48703729270974,"sku":"91150015","price":3752.5,"currency_code":"USD","in_stock":true},{"title":"0.675\" Pump Kit — Standard (w\/ GeoControl Pro \u0026 Battery)","offer_id":48703729303742,"sku":"91150016","price":3752.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/PortableBladderPumps.jpg?v=1726776701"},{"product_id":"geotech-portable-bladder-pump-1-66","title":"Geotech Portable Bladder Pump — 1.66\"","description":"\u003cp\u003eThe \u003cstrong\u003e1.66\" Geotech Portable Bladder Pump\u003c\/strong\u003e is the standard-diameter pump for 2\" monitoring wells — the most common low-flow sampling configuration in the field. Stainless steel construction, quick-change bladder, and a hanger built into the pump body.\u003c\/p\u003e\n\u003cp\u003eA bladder pump isolates the sample from the drive air completely: compressed air squeezes a flexible bladder, and only the bladder ever touches the water. That is what makes it the reference method for low-flow (micro-purge) sampling where volatiles must not be stripped and turbidity must stay low.\u003c\/p\u003e\n\u003ch3\u003eChoosing your configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e18\" or 36\" body.\u003c\/strong\u003e The longer body moves more water per cycle — worth it in higher-yield wells or when purge volumes are large. The 18\" is easier to handle and fits shorter screened intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard or drop tube.\u003c\/strong\u003e A drop tube intake draws from below the pump, letting you sample close to the bottom of the screen without repositioning the pump body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard or PFAS-free.\u003c\/strong\u003e PFAS-free units are built with documented fluoropolymer-free wetted materials for programs where PFAS is an analyte. Same price as standard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuilding a complete 1.66\" system\u003c\/h3\u003e\n\u003cp\u003eA working setup needs four things beyond the pump — all sized to 1.66\":\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pumps-controller-pro\" title=\"GeoControl Pro\"\u003eGeoControl Pro controller\u003c\/a\u003e — drives the pump and sets the cycle timing\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-bladders-1-66\" title='1.66\" Bladders'\u003e1.66\" bladders\u003c\/a\u003e — PTFE or polyethylene; replaced between wells\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-tubing-1-66\" title='1.66\" Tubing'\u003e1.66\" bonded tubing\u003c\/a\u003e — air and discharge lines in one bonded run\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-reels\" title=\"Bladder Pump Reels\"\u003eGeoReel\u003c\/a\u003e — hand or powered, keeps tubing managed between wells\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eEverything compatible with this diameter is gathered in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" Bladder Pump System'\u003e1.66\" Bladder Pump System\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/pdf\/ground_water_sampling_equipment\/portable_bladder_pumps.pdf\" title=\"Specifications\" rel=\"noopener\" target=\"_blank\"\u003eSpecifications\u003c\/a\u003e | \u003ca href=\"https:\/\/www.geotechenv.com\/Manuals\/Geotech_Portable_Bladder_Pump.pdf\" title=\"Manual\" rel=\"noopener\" target=\"_blank\"\u003eInstallation \u0026amp; Operation Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"1.66\" x 18\" — Standard","offer_id":48703726158014,"sku":"81150034","price":750.5,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 36\" — Standard","offer_id":48703726190782,"sku":"81150045","price":840.75,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 18\" — Drop Tube","offer_id":48703726223550,"sku":"81150035","price":750.5,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 36\" — Drop Tube","offer_id":48703726256318,"sku":"81150046","price":840.75,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 18\" — PFAS-Free","offer_id":48703726289086,"sku":"81150051","price":750.5,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 36\" — PFAS-Free","offer_id":48703726321854,"sku":"81150052","price":840.75,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 18\" — Drop Tube, PFAS-Free","offer_id":48703726354622,"sku":"81150053","price":750.5,"currency_code":"USD","in_stock":true},{"title":"1.66\" x 36\" — Drop Tube, PFAS-Free","offer_id":48703726387390,"sku":"81150054","price":840.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/portable_bladder_pumps.jpg?v=1786543579"},{"product_id":"geotech-bladder-pump-bladders-1-66","title":"Geotech Bladder Pump Bladders — 1.66\"","description":"\u003cp\u003eReplacement bladders for the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-1-66\" title='1.66\" Portable Bladder Pump'\u003e1.66\" Geotech Portable Bladder Pump\u003c\/a\u003e. The bladder is the only part of the pump that contacts the sample, and it is a consumable — most programs fit a fresh one at each well to eliminate any possibility of carryover.\u003c\/p\u003e\n\u003ch3\u003ePTFE or polyethylene?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE\u003c\/strong\u003e is chemically inert and the choice when the analyte list is sensitive or the method specifies it. It costs more per bladder but stands up to aggressive chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyethylene\u003c\/strong\u003e is inexpensive enough to treat as genuinely single-use. For routine monitoring across many wells, the 12-packs are the economical way to buy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRunning a PFAS-free pump?\u003c\/strong\u003e Fit the \u003cstrong\u003epolyethylene\u003c\/strong\u003e bladders only. PTFE is a fluoropolymer and is not part of the PFAS-free build — see the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-1-66-portable-bladder-pump-repair-parts\" title='1.66\" PBP Repair Parts'\u003ePFAS-free parts list\u003c\/a\u003e for the other components that differ.\u003c\/p\u003e\n\u003cp\u003eMatch the bladder length to your pump body — an 18\" pump takes 18\" bladders, a 36\" pump takes 36\".\u003c\/p\u003e\n\u003cp\u003eEverything compatible with this diameter is in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" Bladder Pump System'\u003e1.66\" Bladder Pump System\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"PTFE, 1.66\" x 18\" — Each","offer_id":48703726878910,"sku":"21150054","price":57.0,"currency_code":"USD","in_stock":true},{"title":"Polyethylene, 1.66\" x 18\" — Each","offer_id":48703726911678,"sku":"21150055","price":10.45,"currency_code":"USD","in_stock":true},{"title":"Polyethylene, 1.66\" x 18\" — 12 Pack","offer_id":48703726944446,"sku":"21150056","price":76.0,"currency_code":"USD","in_stock":true},{"title":"PTFE, 1.66\" x 36\" — Each","offer_id":48703726977214,"sku":"21150141","price":114.0,"currency_code":"USD","in_stock":true},{"title":"Polyethylene, 1.66\" x 36\" — Each","offer_id":48703727009982,"sku":"21150140","price":19.0,"currency_code":"USD","in_stock":true},{"title":"Polyethylene, 1.66\" x 36\" — 12 Pack","offer_id":48703727042750,"sku":"21150139","price":137.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/portable_bladder_pumps_09efbc0e-4231-45d4-869c-5c74f7a0712f.jpg?v=1786543853"},{"product_id":"geotech-bladder-pump-tubing-1-66","title":"Geotech Bladder Pump Tubing — 1.66\"","description":"\u003cp\u003eSkip-bonded tubing for the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-1-66\" title='1.66\" Portable Bladder Pump'\u003e1.66\" Geotech Portable Bladder Pump\u003c\/a\u003e. Air and discharge lines are bonded together at intervals, so a single run goes down the well and comes back up without tangling or separating.\u003c\/p\u003e\n\u003cp\u003eThis size pairs a \u003cstrong\u003e1\/4\" x 3\/8\" discharge\u003c\/strong\u003e line with a \u003cstrong\u003e0.17\" x 1\/4\" air\u003c\/strong\u003e line — the configuration the 1.66\" pump is plumbed for. Sold by the foot; order the total depth you need plus working slack at surface.\u003c\/p\u003e\n\u003ch3\u003eChoosing a material\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLDPE\u003c\/strong\u003e — the standard, most flexible option and the easiest to handle on a reel in cold weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHDPE\u003c\/strong\u003e — stiffer and more abrasion-resistant; holds up better in deep or rough casings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFEP-lined LDPE\u003c\/strong\u003e — an inert fluoropolymer flow path with a polyethylene outer wall. Use where the analyte list rules out direct contact with polyethylene.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEverything compatible with this diameter is in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" Bladder Pump System'\u003e1.66\" Bladder Pump System\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"LDPE, 1\/4\" x 3\/8\" Discharge x 0.17\" x 1\/4\" Air — Per Foot","offer_id":48703727272126,"sku":"87050521","price":1.33,"currency_code":"USD","in_stock":true},{"title":"HDPE, 1\/4\" x 3\/8\" Discharge x 0.17\" x 1\/4\" Air — Per Foot","offer_id":48703727304894,"sku":"87050631","price":1.33,"currency_code":"USD","in_stock":true},{"title":"FEP-Lined LDPE, 1\/4\" x 3\/8\" Discharge x 0.17\" x 1\/4\" Air — Per Foot","offer_id":48703727337662,"sku":"87050522","price":3.09,"currency_code":"USD","in_stock":true},{"title":"HDPE, 1\/4\" x 3\/8\" Both Lines (Dedicated Systems) — Per Foot","offer_id":48703727370430,"sku":"87050632","price":1.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/bonded_tubing_cd05655a-611d-43c4-bb70-f18ffdab7573.jpg?v=1786543802"},{"product_id":"geotech-bladder-pump-reels","title":"Geotech Bladder Pump Reels","description":"\u003cp\u003eReels for deploying and recovering bladder pump tubing. Bonded air-and-discharge tubing is awkward to handle loose — it kinks, drags on the ground, and picks up contamination between wells. A reel keeps the run clean, controlled and repeatable.\u003c\/p\u003e\n\u003ch3\u003eWhich reel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeoReel Hand Reels\u003c\/strong\u003e are matched to pump diameter, because the tubing size differs: one covers the 0.675\" and 0.85\" pumps, the other the 1.66\". Manual rewind, light enough to carry well to well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Reels\u003c\/strong\u003e take 3\/8\" compression air and discharge lines and include a pump holder — the choice for deeper settings and heavier tubing runs. Available with manual rewind or electric rewind, where recovering several hundred feet by hand would slow the day down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMatch the hand reel to your pump: see the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" System'\u003e1.66\"\u003c\/a\u003e, \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-0-85\" title='0.85\" System'\u003e0.85\"\u003c\/a\u003e and \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-0-675\" title='0.675\" System'\u003e0.675\"\u003c\/a\u003e system collections.\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"GeoReel Hand Reel — 0.675\" \u0026 0.85\" Pumps","offer_id":48703727567038,"sku":"81400527","price":688.75,"currency_code":"USD","in_stock":true},{"title":"GeoReel Hand Reel — 1.66\" Pump","offer_id":48703727599806,"sku":"81400520","price":688.75,"currency_code":"USD","in_stock":true},{"title":"Large Reel, Manual Rewind — 3\/8\" Compression, w\/ Pump Holder","offer_id":48703727632574,"sku":"81400546","price":1235.0,"currency_code":"USD","in_stock":true},{"title":"Large Reel, Electric Rewind — 3\/8\" Compression, w\/ Pump Holder","offer_id":48703727665342,"sku":"81400547","price":2802.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/166_portable_bladder_pump_system.jpg?v=1786543804"},{"product_id":"geotech-bladder-pump-drop-tube-intake-assemblies","title":"Geotech Bladder Pump Drop Tube Intake Assemblies","description":"\u003cp\u003eDrop tube intake assemblies for Geotech Portable Bladder Pumps. A drop tube moves the intake point below the pump body, so you can draw from near the base of the screened interval without lowering the whole pump to that depth.\u003c\/p\u003e\n\u003cp\u003eThat matters in short screens and in wells where you want the intake at a specific horizon — you set the pump where it fits and let the drop tube reach the water you actually want to sample.\u003c\/p\u003e\n\u003cp\u003eEach assembly includes the hose barb sized for its pump: \u003cstrong\u003e1\/2\"\u003c\/strong\u003e on the 1.66\" assemblies and \u003cstrong\u003e1\/4\"\u003c\/strong\u003e on the 0.675\" and 0.85\" assemblies. A \u003cstrong\u003ePFAS-free\u003c\/strong\u003e version of the 1.66\" assembly is available for programs where PFAS is an analyte.\u003c\/p\u003e\n\u003cp\u003eThese are replacement and add-on assemblies. Pumps ordered in a drop tube configuration already include one — see the drop tube options on the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-1-66\" title='1.66\" Pump'\u003e1.66\"\u003c\/a\u003e, \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-0-85\" title='0.85\" Pump'\u003e0.85\"\u003c\/a\u003e and \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-0-675\" title='0.675\" Pump'\u003e0.675\"\u003c\/a\u003e pumps.\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"1.66\" Drop Tube Intake w\/ 1\/2\" Hose Barb","offer_id":48703727698110,"sku":"51150071","price":221.35,"currency_code":"USD","in_stock":true},{"title":"1.66\" Drop Tube Intake w\/ 1\/2\" Hose Barb — PFAS-Free","offer_id":48703727730878,"sku":"51150078","price":221.35,"currency_code":"USD","in_stock":true},{"title":"0.85\" Drop Tube Intake w\/ 1\/4\" Hose Barb","offer_id":48703727763646,"sku":"51150069","price":189.05,"currency_code":"USD","in_stock":true},{"title":"0.675\" Drop Tube Intake w\/ 1\/4\" Hose Barb","offer_id":48703727796414,"sku":"51150070","price":167.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/bladder_pump_drop_tubes.jpg?v=1786543806"},{"product_id":"geotech-bladder-pump-quick-connects","title":"Geotech Bladder Pump Quick Connects","description":"\u003cp\u003eStainless steel push\/pull quick connects for bladder pump air and discharge lines. They let you break and remake the connection between controller, tubing and pump without tools — which is what you want when you are moving between wells all day.\u003c\/p\u003e\n\u003cp\u003eSized \u003cstrong\u003e1\/4\" x 1\/4\"\u003c\/strong\u003e for standard portable setups and \u003cstrong\u003e3\/8\" x 3\/8\"\u003c\/strong\u003e for the larger compression-fitting systems used with the large reels and dedicated installations.\u003c\/p\u003e\n\u003cp\u003eAlso available: \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-tubing-1-66\" title='1.66\" Tubing'\u003e1.66\" tubing\u003c\/a\u003e, \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-tubing-0-675-0-85\" title=\"Small-diameter Tubing\"\u003e0.675\" \u0026amp; 0.85\" tubing\u003c\/a\u003e, and the full \u003ca href=\"https:\/\/envirotechonline.com\/collections\/geotech-bladder-pump-parts-accessories\" title=\"Bladder Pump Parts \u0026amp; Accessories\"\u003eBladder Pump Parts \u0026amp; Accessories\u003c\/a\u003e range.\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"1\/4\" x 1\/4\" Push\/Pull, SS6","offer_id":48703728255166,"sku":"17200406","price":99.75,"currency_code":"USD","in_stock":true},{"title":"3\/8\" x 3\/8\" Push\/Pull, SS6","offer_id":48703728287934,"sku":"17200338","price":118.75,"currency_code":"USD","in_stock":true}]},{"product_id":"geotech-dedicated-bladder-pump-1-66","title":"Geotech Dedicated Bladder Pump — 1.66\"","description":"\u003cp\u003eThe \u003cstrong\u003e1.66\" x 18\" Dedicated Bladder Pump\u003c\/strong\u003e is built to stay in the well between sampling events rather than being carried from location to location. Stainless steel body with \u003cstrong\u003e3\/8\" compression fittings\u003c\/strong\u003e on both the air and discharge sides, in place of the hose barbs used on the portable pumps.\u003c\/p\u003e\n\u003cp\u003eLeaving a pump installed removes the two biggest sources of variability in a long-running program: you are not decontaminating between wells, and you are not re-seating a pump at a slightly different depth each visit. Results become more comparable event to event, and field time per well drops sharply.\u003c\/p\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eLong-term compliance monitoring networks, wells sampled on a fixed schedule, and any site where the same points are visited quarterly or monthly. Best paired with a large reel and 3\/8\" compression tubing rather than the portable hand reels.\u003c\/p\u003e\n\u003cp\u003eFor a pump that moves between wells, see the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-1-66\" title='1.66\" Portable Bladder Pump'\u003e1.66\" Portable Bladder Pump\u003c\/a\u003e. Bladders are shared with the portable range — use \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-bladders-1-66\" title='1.66\" Bladders'\u003e1.66\" x 18\" bladders\u003c\/a\u003e.\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"1.66\" x 18\" Dedicated — 3\/8\" Compression Air \u0026 Discharge","offer_id":48703728353470,"sku":"81150121","price":745.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/geotech_bladder_pumps_L.jpg?v=1786543807"},{"product_id":"geotech-1-66-portable-bladder-pump-repair-parts","title":"Geotech 1.66\" Portable Bladder Pump Repair Parts","description":"\u003cp\u003eField-replaceable parts for the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-portable-bladder-pump-1-66\" title='1.66\" Portable Bladder Pump'\u003e1.66\" Geotech Portable Bladder Pump\u003c\/a\u003e — housings, caps, check balls, O-rings, screens and the complete intake assemblies. Covers both the \u003cstrong\u003estandard\u003c\/strong\u003e and \u003cstrong\u003ePFAS-free\u003c\/strong\u003e builds of the pump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eItem numbers match the exploded diagram\u003c\/strong\u003e shown above, reproduced from Section 7 of the pump manual. The diagram illustrates the 18\" model; the 36\" pump is identical apart from the housing and upper cap, which are listed in both lengths.\u003c\/p\u003e\n\u003ch3\u003eStandard or PFAS-free — which parts differ\u003c\/h3\u003e\n\u003cp\u003eMost of the pump is common to both builds. The difference is confined to the parts with a polymer in the wetted path, because the standard pump uses fluoropolymers (PTFE, Viton) that a PFAS-free program cannot accept:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003cth\u003ePFAS-Free\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 — Compression ring\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003ctd\u003eHDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7, 8, 12, 14 — O-rings\u003c\/td\u003e\n\u003ctd\u003eViton\u003c\/td\u003e\n\u003ctd\u003eBuna-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9 — Hanger assembly\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003ePFAS-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e19 — Bottom intake assembly\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003ePFAS-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 — Lower cap assembly\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003ePFAS-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eEverything else — housings, hose barbs, check balls, upper and lower caps, retainer plug, screen, disc, snap ring, drop tube components and tubing — is the same part in either build. Spare parts kits, O-ring service kits and thread tape are stocked in both versions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBladder caution for PFAS-free pumps:\u003c\/strong\u003e the \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-bladders-1-66\" title='1.66\" Bladders'\u003e1.66\" bladders\u003c\/a\u003e are stocked in polyethylene and PTFE. \u003cstrong\u003eOnly the polyethylene bladders are PFAS-free\u003c\/strong\u003e — PTFE is a fluoropolymer, so do not fit one to a PFAS-free pump.\u003c\/p\u003e\n\u003ch3\u003eHow the pump comes apart\u003c\/h3\u003e\n\u003cp\u003eThe diagram groups the pump into four sub-assemblies, which is also the order you work through a rebuild:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing (2)\u003c\/strong\u003e — the outer stainless tube, sized 18\" or 36\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBladder Assembly (1, 5)\u003c\/strong\u003e — the bladder plus its compression ring. The bladder is a consumable, stocked separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Assembly (3, 4, 6–14)\u003c\/strong\u003e — upper cap weldment, hose barbs, hanger, check balls and the O-ring set. This is where most wear shows up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Intake (15–19)\u003c\/strong\u003e or \u003cstrong\u003eOptional Drop Tube Assembly (20–25)\u003c\/strong\u003e, depending on your pump's configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat usually needs replacing\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eO-rings (7, 8, 12, 14).\u003c\/strong\u003e The most common cause of a pump that will not hold pressure or lift a full column. The \u003cstrong\u003eO-Ring Service Kit\u003c\/strong\u003e covers the whole set in one order and is the sensible first move on any underperforming pump — order the version matching your build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck balls (6, 13).\u003c\/strong\u003e A scarred or seated ball stops the pump sealing on the up-stroke.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake screen (16).\u003c\/strong\u003e Replace when clogged or deformed after sediment-heavy work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpare Parts Kit.\u003c\/strong\u003e Bundles the common wear items — worth carrying one per crew as a field spare.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTwo items on the diagram are stocked on their own pages: \u003cstrong\u003eitem 1\u003c\/strong\u003e bladders, and \u003cstrong\u003eitem 24\u003c\/strong\u003e, the complete \u003ca href=\"https:\/\/envirotechonline.com\/products\/geotech-bladder-pump-drop-tube-intake-assemblies\" title=\"Drop Tube Intake Assemblies\"\u003edrop tube intake assembly\u003c\/a\u003e — available there in both standard and PFAS-free.\u003c\/p\u003e\n\u003cp\u003eGeotech Service can advise on whether a pump is worth rebuilding in the field: \u003cstrong\u003e1-800-833-7958\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSee also the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66\" title='1.66\" Bladder Pump System'\u003e1.66\" Bladder Pump System\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/Manuals\/Geotech_Portable_Bladder_Pump.pdf\" title=\"Manual\" rel=\"noopener\" target=\"_blank\"\u003eInstallation \u0026amp; Operation Manual\u003c\/a\u003e | \u003ca href=\"https:\/\/www.geotechenv.com\/Manuals\/Geotech_PFAS_Free_Portable_Bladder_Pump.pdf\" title=\"PFAS-Free Manual\" rel=\"noopener\" target=\"_blank\"\u003ePFAS-Free Manual\u003c\/a\u003e | \u003ca href=\"https:\/\/www.geotechenv.com\/pdf\/ground_water_sampling_equipment\/portable_bladder_pumps.pdf\" title=\"Specifications\" rel=\"noopener\" target=\"_blank\"\u003eSpecifications\u003c\/a\u003e\u003c\/p\u003e","brand":"Geotech Environmental Equipment, Inc.","offers":[{"title":"2 — Housing, SS6 1.66\" x 18\"","offer_id":48704061309118,"sku":"21150041","price":162.45,"currency_code":"USD","in_stock":true},{"title":"2 — Housing, SS6 1.66\" x 36\"","offer_id":48704061341886,"sku":"51150141","price":301.15,"currency_code":"USD","in_stock":true},{"title":"3 — Hose Barb, SS6 Modified 1\/4 x 1\/4\" MPT (Discharge Line)","offer_id":48704061374654,"sku":"11150106","price":30.4,"currency_code":"USD","in_stock":true},{"title":"4 — Hose Barb, SS6 .170 x 1\/8\" MPT (Air Line)","offer_id":48704061407422,"sku":"21150019","price":28.5,"currency_code":"USD","in_stock":true},{"title":"5 — Compression Ring, PTFE","offer_id":48704061440190,"sku":"21150042","price":27.55,"currency_code":"USD","in_stock":true},{"title":"6 — Check Ball, SS6 3\/8\"","offer_id":48704061472958,"sku":"17500081","price":4.75,"currency_code":"USD","in_stock":true},{"title":"7 — O-Ring, Viton 2.5 mm x 23 mm","offer_id":48704061505726,"sku":"11150319","price":4.99,"currency_code":"USD","in_stock":true},{"title":"8 — O-Ring, Viton 2.5 mm x 36 mm","offer_id":48704061538494,"sku":"11150318","price":6.65,"currency_code":"USD","in_stock":true},{"title":"9 — Hanger Assembly w\/ Safety Cable — Standard","offer_id":48704061571262,"sku":"51150068","price":25.65,"currency_code":"USD","in_stock":true},{"title":"10 — Upper Cap Weldment, SS 1.66\" x 18\"","offer_id":48704061604030,"sku":"21150091","price":229.9,"currency_code":"USD","in_stock":true},{"title":"10 — Upper Cap Weldment, SS 1.66\" x 36\"","offer_id":48704061636798,"sku":"21150136","price":281.2,"currency_code":"USD","in_stock":true},{"title":"11 — Ball Retainer Plug","offer_id":48704061669566,"sku":"21150096","price":20.9,"currency_code":"USD","in_stock":true},{"title":"12 — O-Ring, Viton #014","offer_id":48704061702334,"sku":"17500119","price":2.25,"currency_code":"USD","in_stock":true},{"title":"13 — Check Ball, SS6 1\/2\"","offer_id":48704061735102,"sku":"17500082","price":8.55,"currency_code":"USD","in_stock":true},{"title":"14 — O-Ring, Viton 2 mm x 20 mm","offer_id":48704061767870,"sku":"11150332","price":6.41,"currency_code":"USD","in_stock":true},{"title":"15 — Lower Cap, SS6","offer_id":48704061800638,"sku":"21150094","price":204.25,"currency_code":"USD","in_stock":true},{"title":"16 — Intake Screen, SS6","offer_id":48704061833406,"sku":"21150095","price":19.0,"currency_code":"USD","in_stock":true},{"title":"17 — Disc, Stainless Steel","offer_id":48704061866174,"sku":"21150148","price":7.0,"currency_code":"USD","in_stock":true},{"title":"18 — Snap Ring, SS6 Internal","offer_id":48704061898942,"sku":"11150051","price":5.01,"currency_code":"USD","in_stock":true},{"title":"19 — Bottom Intake Assembly (Complete) — Standard","offer_id":48704061931710,"sku":"51150067","price":269.8,"currency_code":"USD","in_stock":true},{"title":"20 — Lower Cap Assembly, Drop Tube w\/ 1\/2\" Hose Barb — Standard","offer_id":48704061964478,"sku":"51150128","price":215.65,"currency_code":"USD","in_stock":true},{"title":"21 — Drop Tube Lower Cap, SS","offer_id":48704061997246,"sku":"21150098","price":204.25,"currency_code":"USD","in_stock":true},{"title":"22 — Hose Barb, SS6 1\/2 x 3\/8\" MPT","offer_id":48704062030014,"sku":"16600217","price":32.01,"currency_code":"USD","in_stock":true},{"title":"23 — Tubing, LDPE 1\/2 x 5\/8\" — Per Foot","offer_id":48704062062782,"sku":"87050504","price":0.7,"currency_code":"USD","in_stock":true},{"title":"25 — Drop Tube Intake","offer_id":48704062095550,"sku":"21150113","price":175.75,"currency_code":"USD","in_stock":true},{"title":"Spare Parts Kit — 1.66\" PBP — Standard","offer_id":48704062128318,"sku":"51150066","price":99.75,"currency_code":"USD","in_stock":true},{"title":"O-Ring Service Kit — 1.66\" PBP, Full Set — Standard","offer_id":48704062161086,"sku":"91150012","price":33.25,"currency_code":"USD","in_stock":true},{"title":"Bushing, Modified 1\/8 x 1\/4\" MPT (Discharge)","offer_id":48704062193854,"sku":"57200016","price":28.5,"currency_code":"USD","in_stock":true},{"title":"5 — Compression Ring, HDPE — PFAS-Free","offer_id":48704082575550,"sku":"21150149","price":27.55,"currency_code":"USD","in_stock":true},{"title":"7 — O-Ring, Buna-N 2.5 mm x 23 mm — PFAS-Free","offer_id":48704082608318,"sku":"11150455","price":3.8,"currency_code":"USD","in_stock":true},{"title":"8 — O-Ring, Buna-N 2.5 mm x 36 mm — PFAS-Free","offer_id":48704082641086,"sku":"11154056","price":4.75,"currency_code":"USD","in_stock":true},{"title":"9 — Hanger Assembly w\/ Safety Cable — PFAS-Free","offer_id":48704082673854,"sku":"51150144","price":25.65,"currency_code":"USD","in_stock":true},{"title":"12 — O-Ring, Buna-N #014 — PFAS-Free","offer_id":48704082706622,"sku":"11154057","price":2.85,"currency_code":"USD","in_stock":true},{"title":"14 — O-Ring, Buna-N 2 mm x 20 mm — PFAS-Free","offer_id":48704082739390,"sku":"11154058","price":2.85,"currency_code":"USD","in_stock":true},{"title":"19 — Bottom Intake Assembly (Complete) — PFAS-Free","offer_id":48704082772158,"sku":"51150145","price":269.8,"currency_code":"USD","in_stock":true},{"title":"20 — Lower Cap Assembly, Drop Tube w\/ 1\/2\" Hose Barb — PFAS-Free","offer_id":48704082804926,"sku":"51150146","price":215.65,"currency_code":"USD","in_stock":true},{"title":"Spare Parts Kit — 1.66\" PBP — PFAS-Free","offer_id":48704082837694,"sku":"51150079","price":99.75,"currency_code":"USD","in_stock":true},{"title":"O-Ring Service Kit — 1.66\" PBP, Full Set — PFAS-Free","offer_id":48704082870462,"sku":"91150022","price":33.25,"currency_code":"USD","in_stock":true},{"title":"Thread Tape, 1\/2\" x 600 ft — PFAS-Free","offer_id":48704082903230,"sku":"21150153","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/pbp_166_parts_diagram.png?v=1786550436"}],"url":"https:\/\/envirotechonline.com\/collections\/bladder-pump-system-1-66.oembed","provider":"EnviroTech Services","version":"1.0","type":"link"}