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 What is a backflow preventer?
Since water follows the path of least resistance, it will always flow from a higher
to a lower pressure. Therefore, a decrease in system pressure or an increase in
pressure from the customer side could cause backflow. The backflow has a dual check system that prevents water from flowing back into the towns water supply. Installation of an approved backflow prevention assembly is required at the service connection to any premise where there is an auxiliary supply or system - even if there is no connection or cross-connection. For example, anyone with an alternate source of water such as a well, spring, stream, etc., or anyone with an irrigation system, or two or more meters serving one parcel must have a backflow prevention device. Commercial and professional buildings with fire sprinklers, lab equipment, boilers, etc., are further examples of premises that require a backflow prevention device.
Why does it need to be tested?
Indiana State Law requires the mandatory testing of all backflows installed on irrigation systems once a year. This is to prevent any harmful substance to get back into the potable water supply.
Click here for link to article. The section talking about the backflow testing is on page 6 Section 3.2.3 "Cross Connection Control
We can test!
Each pressure vacuum breaker (PVB) has to be tested every year, but reduced pressure vavles (RP) have to be tested every 6 months. Almost all residential consumer irrigation systems have (PVB), but some commercial buildings may have (RP), if you are unsure which kind you have, give us a call and we can help you find out which valve you have. We have four state certified backflow testers on staff. If you have a backflow that needs to be tested, please call our office and we can schedule it to be tested.
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Lawn aeration
