[garrett1812]

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!

 

[Ghostmaker]

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.

 

[garrett1812]

Thanks for the feedback. Is there a better way to plumb this?

 

[TheEplumber]

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

 

[garrett1812]

What if I put a new hole in the lid of the pit and attached the drain to that?

 

[WhatRnsdownhill]

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..

 

[garrett1812]

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?

 

[WhatRnsdownhill]

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..

 

[garrett1812]

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?

 

[WhatRnsdownhill]

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..

 

[garrett1812]

Not sure what you mean by 'bull' and 'ty'. It would look like this?

Thanks!

 

[WhatRnsdownhill]

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..

 

[WhatRnsdownhill]

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..

 

[TheEplumber]

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.

 

[ben's plumbing]

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...

 

[garrett1812]

I certainly do have a lot of opinions. If my count is correct, between here and others I have talked to I now have five different suggestions. Including two which are the same but change the direction of the ty fitting. Very confusing. The sink isn't worth concrete work to me; I am only going to add it if its simple, otherwise I can do without.

I guess I will see which looks easiest to undo, in case it doesnt work, and go that route!

 

[Ghostmaker]

6 foot IPC. vent to trap distance.

 

[TheEplumber]

6 foot IPC. vent to trap distance.

Thank you.
So now it can be just like the picture, but the trap arm length increases.

 

[Ghostmaker]

Just run it to the vent on the pump pit. No ones going to lose sleep over it. That way you will not mess up your seals on the pit if you start needing it for the toilet.

 

[garrett1812]

6 foot IPC. vent to trap distance.

Sorry, not familiar with the terminology, what does this mean?