The sewer backflow preventer itself may have a shut-off valve handle or a ball valve on ... Because the backflow preventers have moving parts, seals, and springs that could wear out and break ...
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Keeping your water on could cost thousands: What to know about Birmingham backflow programThere is no way that our back flow valve would pass inspection. To replace it will cost us $1100. In addition, the BWW will require us to have the backflow valve inspected every year.
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