Trying to figure out the function of my main water valve...

[fizzle7]

Hi all,

First post on this forum, I had a question regarding my home water valve. I assume the red lever controls the water from the mains to the house. But the two blue levers I am confused by. I don't want to just start turning things without understanding the impact, so I was hoping someone might know.

I have an underground sprinkler system so I assume the two blue levers are part of a double check backflow system.

The question however is why does it appear one valve is open and one is closed? Meaning, the levers are in two different positions. Is this typical of such a system? Or does it mean my sprinkler water supply is shut off? etc.

As a side note, my sprinkler system does not currently operate and I have wondered if it's simply due to the valve being closed.

Thanks for the help and please ignore the spider webs!

 

[Fitter30]

Valve on the left is off right is on

 

[Sponsor]

 

[Reach4]

I have an underground sprinkler system so I assume the two blue levers are part of a double check backflow system.

I suspect there may have been such a device there in the past, and somebody eliminated that.

 

[WorthFlorida]

Most municipalities or water companies for commercial use and building require an annual test and inspection of backflow devices. It's why there are many valves.

https://images.homedepot-static.com...ts-backflow-preventers-1-007m1-qt-64_1000.jpg

 

[Fitter30]

Irrigation systems should have a backflow device that is approved by either the state or city. Thease devices keep your water supply and in case of city water your neighbors water safe from ground water entering the water supply when something happens to the supply.