Sentry I · Open Air
Sentry I Open-Air System
Open-air aeration designed to treat iron, sulfur odor, and problem gases such as methane and radon in residential and small-system well-water applications. Choose the configuration that fits the well.
Overview
The Sentry I Open-Air System
Aeration + Chlorination • Whole-Home Protection
The Sentry I Open-Air Systems combine an adjustable air-draw venturi with the Sentry Dry Pellet Chlorinator. The combination of aeration and chlorination creates a powerful oxidizer and sanitizer.
The Sentry I Open-Air System will treat:
The Sentry I Open-Air System increases your water quality. An increase in water quality reduces your maintenance cost on all appliances that utilize water. Ice makers, dishwashers, washers, water heaters and every faucet in the house are affected by water quality! By using the Sentry I Open-Air System to oxidize iron for sprinkler systems, it will reduce up to 85% of the iron staining and will reduce troublesome sprinkler head clogs.
"This system is often described as a personal municipality for the home — providing 24/7 protection."
In addition to providing clean water to your household, the Sentry I Open-Air Systems are flexible in design so that they may adapt to your specific water needs. We offer an Air Stripping Package that will treat Radon, H2S, CO2 and VOCs. If your concern is Methane, our Sentry I Gas Reduction System is an ideal fit. The products we offer as well as the knowledge we offer is second to none within the industry. We strive to protect not only your private well system but, more importantly, your family. With any of our Sentry Systems you can trust that your water concerns are now just a memory.
Please consult your local dealer for best application and treatment options. All systems require professional installation for warranty.

Aeration & odor treatment
Open Air Systems

Gas Reduction System (G130)
Compact open-air aeration designed to treat iron, sulfur, and methane in your well.
View specifications
G140 Series
The same treatment options as the G130, with higher capacity up to 25 GPM or extra water storage for low-yield well applications.
View specifications
Air Stripping Package
Air-Stripping is commonly used to reduce hard-to-treat gases like radon and CO2, along with odor reduction from water. This package can be installed on either the G130 or G140.
View specificationsCommon applications
Where Sentry I Open-Air Systems are commonly used
Odor
Sulfur odor
Aeration is commonly used to help reduce hydrogen-sulfide (rotten-egg) odor.
Staining
Iron & manganese
Open-air designs support oxidation of iron and manganese ahead of filtration.
Corrosion
Low pH water
Aeration can help raise the pH of acidic well water by venting dissolved carbon dioxide.