1,500+ Reviews 1,500+ Reviews Experience unrivaled water quality with the Sentry G140 Open-Air System — a synergy of aeration and chlorination for superior results. It effectively treats iron (and iron bacteria), manganese, hydrogen sulfide (rotten-egg odor), arsenic, and even methane gas. Pre-wired with a chlorinator, by-pass, bladder tank, and pump for effortless installation.
Two large Open-Air tanks provide ample contact time for oxidation and disinfection, plus bonus storage capacity for low-yield wells.
Three floats, mechanical safety overflow, low-level shutdown, and a water-level-maintaining float — engineered for reliability you can trust.
Complete system with chlorinator, by-pass, bladder tank, and pump — all pre-wired for effortless installation. No scavenging for parts.
As water enters the first 140-gallon chamber, an adjustable venturi adds crucial air — initiating oxidation and diluting gases like methane.
While the tank fills, a chlorinator dispenses precise amounts of chlorine — sanitizing the water and completing the oxidation of odors and bacteria.
A submersible pump in the second 140-gallon chamber repressurizes the treated water, maintaining household pressure in the 40/60 PSI range.
Clean, fresh-tasting, pressurized water is delivered throughout your home — capable of high-flow delivery up to 25 GPM.
For those let down by their original iron filter. The G140 is purpose-built for the challenging Northern Nevada wells that defeat conventional systems.
Users frequently cite "peace of mind" as the biggest benefit — no more orange stains in sinks and laundry, no more rotten-egg showers.
Up to 25 GPM of treated water — plus 280 gallons of buffer storage that doubles as a cushion for low-yield wells.
Requires only regular chlorine pellet top-ups — far easier than manual chemical feeders with tanks, pumps, and metering valves.
Pre-wired and turnkey — our licensed, insured technicians handle the complete installation, typically in a single visit.
Customers report clear, fresh-tasting water that's safe for drinking and extends the life of appliances by removing the minerals that destroy them.
Schedule a free water test and our WQA-certified experts will confirm it’s the right fit for your home.
A certified local expert visits your home, tests your water, and explains exactly what’s in it — completely free.
Tell us about your water. We'll recommend the right system — no pressure.
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