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Old 02-06-2012, 09:49 PM   #16
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Sump pump discharge set-up


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Originally Posted by moneymgmt View Post
Might be a bigger project than I want but what about this:
Behind the pipe, half way up the wall, is a 4" hole I planned to fill. Any reason not to go out that hole and then up to where the underground run connects in? Probably have to pull out about 2' down the foundation to find that hole. Doesn't do much for the vacuum issue but should clear up any concern of freezing.
I think it would easier to cut the 90 out and install a T and install a check valve on top of the T

Make sure you use a pressure fitting T

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Old 02-06-2012, 10:37 PM   #17
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Sump pump discharge set-up


That check valve needs to be vertical, not horizontal and parallel to the ground.
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Old 02-07-2012, 06:41 AM   #18
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Sump pump discharge set-up


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I think it would easier to cut the 90 out and install a T and install a check valve on top of the T Make sure you use a pressure fitting T
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Originally Posted by handy man88 View Post
That check valve needs to be vertical, not horizontal and parallel to the ground.
Is there a different type of check valve to allow air/gas? Or just standard 1 1/2" valve used in plumbing?
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Old 02-07-2012, 03:07 PM   #19
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Sump pump discharge set-up


I would not be concerned about the vacuum, I do not think it will collapse the pvc. But the freezing is a concern. In the vertical piece outside, how about a wye pointed up, then a 45, then the u part of a p-trap glued on. A little water might come out, but if it does with that setup, it would probably get out of a studor vent(AAV).
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Old 02-07-2012, 03:16 PM   #20
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Sump pump discharge set-up


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In the vertical piece outside, how about a wye pointed up, then a 45, then the u part of a p-trap glued on. A little water might come out, but if it does with that setup, it would probably get out of a studor vent(AAV).
Now we're thinking; really like that idea! Throw a little screen over it and it negates my concern of things falling into it or getting down it.
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Old 02-25-2012, 06:21 PM   #21
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Sump pump discharge set-up


Here is what I ended up doing. Been cold lately so haven't been able to see the pump kick on. If any water does come out the vent I'll turn it away from the house. Seemed like a quick yet thorough solution to me, see any problems with it?
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Old 02-25-2012, 10:20 PM   #22
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Sump pump discharge set-up


Seems like overkill. Would the problem have been resolved WRT the airlock by just drilling a 1/4" hole into the pvc outlet?
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Old 02-26-2012, 12:33 AM   #23
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Sump pump discharge set-up


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Seems like overkill. Would the problem have been resolved WRT the airlock by just drilling a 1/4" hole into the pvc outlet?
Roughly $5 in supplies, I don't follow what you mean by overkill. Drilling a hole would only force water to spray through it while pumping.

Last edited by moneymgmt; 02-26-2012 at 12:36 AM.
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Old 02-26-2012, 12:46 AM   #24
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Sump pump discharge set-up


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Originally Posted by moneymgmt View Post
Roughly $5 in supplies, I don't follow what you mean by overkill. Drilling a hole would only force water to spray through it while pumping.
Overkill not in cost, but in your set up.

If it were me, I would first try the drilled hole method, and if that didn't work, I would then do something like what you did. Any water coming out of the drilled hole would be minimal at best. It's not like your discharge outlet is closed or reduced. Path of least resistance, and that's the 1.5" pipe outlet.

Someone else earlier recommended drilling a 1/8" hole.

Another option for you would have been to cut the pipe and install a catch basin for the sump outlet to drain into. There, you won't have to worry about a vacuum. It would be similar to this, but sub the gutter downspout with your sump discharge.

http://www.google.com/imgres?q=catch...108&tx=31&ty=1

http://www.trenchdrainblog.com/wp-co.../DSC000761.JPG


Given that it is what it is with what you have, I would also add a bit more piping so that any water that may come out of that elbow will be diverted somewhere else vice right there at your foundation..

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Last edited by handy man88; 02-26-2012 at 03:35 PM.
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