Geotech Portable Bladder Pump — 0.85" ARA with a 7-inch color touchscreen

with a 7-inch color touchscreen displaying every channel at once

The patented flat sensor sits on the sample surface instead of needing to be submerged

Building a spare parts kit so a failed filter or cracked cell does not halt testing

The Aqua TROLL 700 is a fully customizable seven-port multiparameter sonde with capacity for six interchangeable sensors and an antifouling wiper

Geotech Portable Bladder Pump — 0.85" ARA with a 7-inch color touchscreenThe 0. 85" Geotech Portable Bladder Pump is the narrow diameter option for 1" monitoring wells and tight casings where a 1. 66" pump will not fit. Stainless steel body with a quick change bladder. A bladder pump keeps drive air completely separate from the sample compressed air squeezes a flexible bladder, and only the bladder contacts the water. That isolation is why bladder pumps are the reference method for low flow (micro purge) sampling: