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Old 02-02-2016, 08:44 PM   #1
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Drain sink into ejector pit


Hi all!

I have an ejector pit in my basement, which receives a floor drain and rough-ins for a bathroom (not finished, plan to in future). Currently the ejector pit contains a sump pump, not ejector pump.

I would like to add a utility sink to the area, and drain into this pit. I wanted to see if a wet vent would be the best approach, and if this is the correct application.

Thanks all!
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Old 02-02-2016, 09:07 PM   #2
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It's not a wet vent. It's an individual vent and should not cause you an issue. But it is not acceptable pratice to tie a drain into the sump vent.
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Old 02-02-2016, 09:13 PM   #3
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Thanks for the feedback. Is there a better way to plumb this?
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Old 02-02-2016, 11:49 PM   #4
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Quote:
Originally Posted by garrett1812 View Post
Thanks for the feedback. Is there a better way to plumb this?
The only other way is to bust up the floor or find a waste line for the current rough in and tie into it.
If it was me- I'd use your plan and consider a pump that would handle any solids that would get by the sink
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Old 02-03-2016, 07:09 AM   #5
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What if I put a new hole in the lid of the pit and attached the drain to that?
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Old 02-03-2016, 07:11 AM   #6
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that would work, its more of the sump pump is not designed for any type of solids that could end up in the sump, when you convert to a sewer ejector pump you will be fine..
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Old 02-03-2016, 08:08 AM   #7
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Thanks for the reminder on waste. I do have to be careful to put liquids only. The sink has a pretty specific use, so there should be no problem with that.

If draining into a new hole in the lid will the sink be vented via the vent in the pit, or does something else need to be added to make it vented?
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Old 02-03-2016, 02:08 PM   #8
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you need to vent the sink as if it were hooking into a standard sewer, you can tap into the sump vent...use a 2 x 1 1/2 ty, remember to put ty in so the bull sweeps up for vent..
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Old 02-03-2016, 02:20 PM   #9
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you need to vent the sink as if it were hooking into a standard sewer, you can tap into the sump vent...use a 2 x 1 1/2 ty, remember to put ty in so the bull sweeps up for vent..
Doing this would I tap into the sump vent only for venting, or for draining also?
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Old 02-03-2016, 02:27 PM   #10
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in reality you could do both..is it 100% code..no, but it will work without any issues...its just up to you, its your house..
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Old 02-03-2016, 02:34 PM   #11
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Not sure what you mean by 'bull' and 'ty'. It would look like this?

Thanks!


Last edited by garrett1812; 02-03-2016 at 02:37 PM.
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Old 02-03-2016, 02:51 PM   #12
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that is the drain side, and the fitting you use to tie into the 2 inch is called a ty, you see how the side that goes to the trap, that is called the bull of a T, and how it angles down, well on the vent side you turn it the other way so the bull angles upward..depending on how far away the sink is from the 2 inch vent, you may have to run an additional vent back to the trap..
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Old 02-03-2016, 02:55 PM   #13
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the problem I see down the road for you, is the drain line for the pump is only 1 1/2 inch, minimum for a sewer ejector is 2 inch discharge, you will have to increase that line when you connect a bathroom to it..
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Old 02-03-2016, 04:43 PM   #14
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Garrett, cut in a 2x1.5" sanitary tee at the sump vent.
Then run an 1.5" trap arm as your picture shows. Support the trap arm from sagging and your done.
My UPC code allows a 1.5" trap arm length of 42" before preventing it. I believe IPC is a bit further in length.
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Old 02-03-2016, 04:49 PM   #15
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well you have quite a few options here now don't you...if it were mine..i would bust out concrete tap into the drain line going into pit ...for the 1 1/2 vent needed for tray I would tie onto sump vent back at the wall...
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