Originally Posted by Sprinkus
There are 1000's upon 1000's of irrigation systems out here with DCV's that are never tested, if there is even a backflow installed at all.
Some local companies are still getting away with installing DCV's when there is an OSSF on site, even though it is against local and state regulations.
The local water purveyor has recently taken over the backflow program from the city but I still doubt that it will help that much.
Maybe someone needs to invent a backflow device with a super loud alarm that goes off when it fails.
They already exist, in the form of an optional relief-valve bonnet for RPZs with a switch built in, that lets you know if the relief valve opens.