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Lma

Starting Member

1

Tuesday, June 14th 2022, 5:43pm

Fabco 765-3/4 leaking

I replaced the poppet and bonnet but it's still leaking. Any ideas?

mrfixit

Moderator

Posts: 2,617

Location: USA

2

Wednesday, June 15th 2022, 4:30am

If you bought Fabco parts then that could be the problem. There are some after market parts that just aren't as good. Try using Febco.

Maybe take it apart, turn the washer over. Check for pits on the seat.

Maybe there's not enough pressure to seal it.

Is the ball valve turning back on all the way?

I've seen them break on back flows to where the handle turns but the inside ball doesn't. It might be partially open. I had the city come out one time because I suspected the ball valve was partially closed. Pats self on back. It was the owners valve but they still came out and fixed it. Was in the cement sidewalk.

mrfixit

Moderator

Posts: 2,617

Location: USA

3

Thursday, June 16th 2022, 3:40am

I had one today that wouldn't seal. Once I ran a station it did.

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