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Question DetailsAsked on 7/8/2014

What kind of contractor installs back flow devises on irrigation systems?

I need to install a back flow devise on my sprinkler. Who installs these? My sprinkler company does not.

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The sprinkler installer should have put one in (in the incoming water pipe, right before the controller) when the control box was installed. Check your manual - some controllers have a built-in one.


Now, if your sprinkler guy will not do it, then a plumber - parts cost about $50, install cost about $75-150 (minimum service charge usually) depending on your area's costs. If your local code allows it and your system uses hose or threaded PVC with slack to run from the controller to each zone, there are about $10 backflow preventers designed to just thread in between garden hoses used for trickle or drip irrigation and the faucet - so just screw into place with hose thread fittings - would use one on each zone feed hose and could do yourself IF you have hose threaded fittings, AND local code allows that type of preventer.

Answered 4 years ago by LCD




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