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Old 07-06-2013, 01:07 AM   #1
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Should check valves leak a little?


My sewage ejector has a vertical valve. It's about 20 years old cast iron. After the pump stops, you can hear water rushing back down. I opened it up and the flap is in great shape and seems to close properly.


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Old 07-06-2013, 04:18 AM   #2
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Should check valves leak a little?


No they should not leak back---You have a rubber boot that is bulging--soon to rupture--

I suggest you change that back flow valve soon---

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Old 07-06-2013, 06:16 AM   #3
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Should check valves leak a little?


If it was mine I also would get rid of that gate valve and replace it with a ball valve.
It's going to be useless in a sewer line and not shut off fully. They do not even work well in a clean water line.
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Old 07-07-2013, 05:24 PM   #4
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Should check valves leak a little?


as Mr mike mentioned on the rubber coupling looks like you have a lot of head pressure on that valve it should not leak but i would consider re piping that set up, to avoid future problems.
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Old 07-07-2013, 05:30 PM   #5
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Should check valves leak a little?


Re peps with new stuff..

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Old 07-07-2013, 05:40 PM   #6
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Should check valves leak a little?


Quote:
Originally Posted by Daugela View Post
My sewage ejector has a vertical valve. It's about 20 years old cast iron. After the pump stops, you can hear water rushing back down. I opened it up and the flap is in great shape and seems to close properly.
Do you still hear the water rushing back?

Also- IMO, I would have left the gate valve- sure, they don't seal 100% years down the road. But thats when your dealing with about 60 psi of water pressure, not the 5 psi you have. But that's me
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Old 07-07-2013, 11:33 PM   #7
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Should check valves leak a little?


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Do you still hear the water rushing back?

Also- IMO, I would have left the gate valve- sure, they don't seal 100% years down the road. But thats when your dealing with about 60 psi of water pressure, not the 5 psi you have. But that's me
I can hear some water trickling down, but I think that's normal since there's some water left behind after the check valve closes. Much better than before, BUT, the water hammer is harder and it practically pulled off the check valve today. It actually leaked.

I tightened up the clamps but don't want to tighten too tight. I then added some wood bracing to the side and secured the pipe below the valve to it for support.

If you look at the pic, the previous builder didn't secure the pipe to the wall. So it essentially hangs down in the closet to the sewage ejector. The pipe wobbles back and forth. I would have secured it to the wall...

Hence why I put some blocking into it. This prevents the water hammer from 'pulling' the valve off now. Anyone else have this problem?

Similar blocking system under check valve for support.

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Old 07-08-2013, 09:17 AM   #8
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Should check valves leak a little?


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Originally Posted by Daugela View Post
I can hear some water trickling down, but I think that's normal since there's some water left behind after the check valve closes. Much better than before, BUT, the water hammer is harder and it practically pulled off the check valve today. It actually leaked.

I tightened up the clamps but don't want to tighten too tight. I then added some wood bracing to the side and secured the pipe below the valve to it for support.

If you look at the pic, the previous builder didn't secure the pipe to the wall. So it essentially hangs down in the closet to the sewage ejector. The pipe wobbles back and forth. I would have secured it to the wall...

Hence why I put some blocking into it. This prevents the water hammer from 'pulling' the valve off now. Anyone else have this problem?

Similar blocking system under check valve for support.
Blocking's good.
In the residential building market a lot of corners are cut because it's such a competitive racket. So bracing is not always installed- just enough to get by

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