🏣️ Transform Your Water Supply Into a Personal Municipality
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.
What Makes the Sentry G140 Different
Dual 140-Gallon Chambers
Two large Open-Air tanks provide ample contact time for oxidation and disinfection, plus bonus storage capacity for low-yield wells.
4-Level Safety System
Three floats, mechanical safety overflow, low-level shutdown, and a water-level-maintaining float — engineered for reliability you can trust.
All-In-One, Pre-Wired
Complete system with chlorinator, by-pass, bladder tank, and pump — all pre-wired for effortless installation. No scavenging for parts.
Ideal For
The 4-Stage Treatment Process
Adjustable Venturi Aeration
As water enters the first 140-gallon chamber, an adjustable venturi adds crucial air — initiating oxidation and diluting gases like methane.
Precision Chlorination
While the tank fills, a chlorinator dispenses precise amounts of chlorine — sanitizing the water and completing the oxidation of odors and bacteria.
Submersible Repressurization
A submersible pump in the second 140-gallon chamber repressurizes the treated water, maintaining household pressure in the 40/60 PSI range.
Pressurized Delivery
Clean, fresh-tasting, pressurized water is delivered throughout your home — capable of high-flow delivery up to 25 GPM.
Why Pure Water Systems for the Sentry G140
Tailored for Tough Wells
For those let down by their original iron filter. The G140 is purpose-built for the challenging Northern Nevada wells that defeat conventional systems.
Peace of Mind, Guaranteed
Users frequently cite "peace of mind" as the biggest benefit — no more orange stains in sinks and laundry, no more rotten-egg showers.
High-Flow Capacity
Up to 25 GPM of treated water — plus 280 gallons of buffer storage that doubles as a cushion for low-yield wells.
Set It and Forget It
Requires only regular chlorine pellet top-ups — far easier than manual chemical feeders with tanks, pumps, and metering valves.
Professional Installation
Pre-wired and turnkey — our licensed, insured technicians handle the complete installation, typically in a single visit.
Clear, Fresh-Tasting Water
Customers report clear, fresh-tasting water that's safe for drinking and extends the life of appliances by removing the minerals that destroy them.
Ready for the Sentry G140?
Schedule a free water test and our WQA-certified experts will confirm it’s the right fit for your home.
