Installing sprinkler

tractng · 08-31-2009, 03:47 PM

Hello,

I am looking to start a project soon

.

Besides turning off the water at the water meter (main line), I have another option to turn off the water at the second shut-off valve located in front of the house (a few inches off the wall). The line then goes into the house under the raised foundation.

Where do I tab the line for my sprinkler? Do I use a "Slip Joint Tee" before the second shutoff valve? If so, do I need another shut-off valve like most sprinklers installation guide suggests?

Thanks,
Tony

kok328 · 08-31-2009, 07:54 PM

Yes, plan on installing a separate shut off valve for the sprinkler system so you don't have to cut water to the home to affect potential repairs. So it doesn't matter where you tap into the line. Being in CA I assume you won't have to worry about blowing out the lines for the winter to prevent bursting of the lines due to freezing but, I could be wrong. You'll also need some form of backflow prevention, whether that be a vacuum breaker or a backflow preventer. Last week I saw a timer unit w/backflow preventer that you can program several zones to come on/off per your programming. This unit hooks directly to an outdoor faucet and can be disconnected during the winter months.

tractng · 08-31-2009, 08:31 PM

Thanks for the response. I also talked to my coworker and he suggested that I tab the water after the second shutoff valve but do install an additional shutoff valve for the sprinkler.

I am aware of the backflow. Looking to get something like Anti-Siphon Control Valve.

tony