2 ms·
A lot of domestic water meters have a simple backflow prevention valve built in. Though most of them are not easily testable like the commercial connection bac
by tuatoru 4y ago
A lot of domestic water meters have a simple backflow prevention valve built in.
Though most of them are not easily testable like the commercial connection backflow prevention valves. If the property has non-potable water as well as potable water under pressure, then one or more commercial grade BPVs are necessary.