Basement drainage


Old 10-13-18, 08:01 PM
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Join Date: Oct 2018
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Basement drainage

I moved into a brand new home late 2017. The unfinished basement has drainage rough ins. 3 13 inch from the framing for a WC. 1 1/2 for the sink and a 2 up against the stud and about 15 centre from the alcove. The permitted drawings show future bath, WC and sink.

my question is will the 2 rough in for the bath have a trap under the slab. If I have to install a trap it will be major work.

apreciate all feedback.

rgds, ct
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Old 10-13-18, 10:06 PM
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If there's a cap on it, take it off and look to see if there's standing water. If not, pour some in and see if it stays there.
Old 10-14-18, 05:15 AM
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Yes, took the cap off and standing water. But the cap is also on at the other end where the 3 goes to the sump so I need to take that off and see if the water in the 2 drains out.
Old 10-16-18, 10:13 AM
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If the drawings show WC and sink, the 2" pipe is likely a vent. Also, if it's against the wall (which I think you said), it's probably a vent.

If it was for a shower, it would most likely be 16-18" out from the wall.

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