SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

I moved into a house last year with a Febco 825Y sprinkler system.

I had a guy come out to flush the system last year, and water was leaking out of a hole on the back of the relief valve. He said it would cost a lot more for him to fix it, and told me just to get a set of replacement rubbers and replace the diaphragm. I did that without a problem and turned the system back on, but there is still water flowing out of the hole in the back.

It's odd though, because there are 5 holes in the back. 4 line up with the bolts in the front, and one doesnt. It's the one in the back that doesn't line up with a bolt that's leaking water, and there's nothing in it. Shoudl there be a bolt or screw or plug there that's missing?

Any help would be appreciated. I've looked at all of the manuals I can find for the 825y (there's a ton online) but I can't seem to find out what the hell that hole is for so I'm not entirely sure where to start.

Thanks in advance to anyone that can help me.

--Mike

Sorry about the quality, my camera is dead and I had to use my cell phone.

Both winters I had the system professionally flushed so I'd hope to god it's not freeze damage.


You can see, there are 2 holes in the picture where the bolts come through, this one is at the bottom and doesn't line up with a bolt on the front.