Backflow preventer in crawlspace??

[crosby1]

i just had an irrigation system installed @ the house. for now, i opted to tap off the water main under the house and not have a separate meter installed.

they put the backflow preventer in the crawlspace and i was wondering if this is an acceptable place for it to be?

there were quite a few problems with the install, so i'm not really keen on bringing this up with him until i have some good info.

thanks...

[FloridaOrange]

I think it would be acceptable as long as it's accessible for maintenance and testing.

[Gary Swart]

Backflow preventers should be certified annually by a licensed and certified inspector because they do not last forever without replacing seals, O rings, and etc.. I know some local authorities ignore the EPA and have no requirements for this, but when the BFP fails, your family and the entire community is at risk. For this reason, your BFP should be in a place convenient for inspection and testing. My city inspects the BFP the first time, then homeowners are required to make arrangements with a qualified inspector each spring. If this is not done, water service to the home is discontinued.

[crosby1]

well, it is in a convenient place. it's right inside the door to the crawl space. my question has more to do with what happens if and when water comes out of it?

i mean, i'm going to have to winterize the system soon and then it will be filled with air. when i turn the water back on in the spring, aren't i going to get gallons of water coming out of the top of the BFP?

it just seems to me, that it should be outside the house; not in the crawl space underneath...seems like a set-up for disaster.

maybe i'm way off base and it's OK; just trying to get an idea before i go off on the guy again.

thanks.

[tomm]

Crosby1, you are 100% right.

From your description, I'm assuming you have a pressure vacuum breaker. Please post a picture.

If so, you have got to get that out of your crawl space! When it dumps you will potentially have a huge mess on your hands. They are to be installed outside.

I'll bet that its not even installed above the highest head, being that its in a crawl space.

[SewerRatz]

I would be surprised with a new install using a pressurized Vacuum breaker. Most places have banned them for use on lawn irrigation. They are moving to have RPZ devices installed. Which requires an air gap and a drain to be installed on it to carry the water away to a safe place to drain off with out causing property damage.

Notice the pipe at the bottom of the device in the picture that is attached to the air gap which catches the discharge of the RPZ.