My Favorite Plumber

Plumbing and Heating Services Downingtown, West Chester and Paoli Area

Downingtown | 610-269-5874

West Chester | 610-431-9777

Paoli | 610-296-3040

Install backflow device

There are several devices out there that can be used to prevent contamination of potable water due to backflow, all of which can be installed by the professionals at My Favorite Plumber. Backflow prevention options include an atmospheric vacuum breaker (AVB), which prevents siphoning, a double check valve to prevent leakage cause by reverse pressure, or a reduced pressure zone device (or RPZ valve). 

Backflow prevention: why it matters

Backflow prevention is not just a nice-to-have: it's a must-have, both for health and to avoid violating the law. Backflow preventers are mandated in any situation where the reverse flow of polluted water could enter the “potable” (drinking) water system. Water backing up from a drain into a sink or shower is not as serious because there is no direct contamination of fresh water.   

For more useful tips, see our helpful hints page.  

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