
Originally Posted by
Terry
After any trap, you would need to add a vent to break the siphon.
If the pipe is vertical, you would use a santee, and for horizontal a wye fitting. A Combo is considered a wye fitting too.
The vents can tie together above the flood level of the highest fixture on that floor, 42"
Then the vent needs to either revent at 42" on the next floor, or continue through to the roof.
From vent to trap Max distance
1.5" 42"
2.0" 60"
3.0" 72"
It would be
Floor drain,
Vent within 60"
Then wye into a waste line.
Fittings below grade would be waste fittings. 45's and long turns.
It was Mothers Day yesterday.
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