TonyBagadonutz
03-26-2005, 02:32 PM
I have seen it referenced many times that a wye fitting cannot be on it's back.
Just exactly what does this mean?
Terry
03-26-2005, 02:41 PM
A tee fitting can't be on it's back.
A wye fitting can.
TonyBagadonutz
03-26-2005, 03:06 PM
Could a wye be used instead of a tee - in general?
Terry
03-26-2005, 03:49 PM
Yes, unless you are venting on the vertical.
Waste: vertical to horizontal, wye, or long turn
Waste: horizontal to vertical, wye or tee
Waste: vertical to vertical, wye
Trap arm venting: horizontal to vertical, tee
Trap arm venting: horizontal to horizontal, wye
Vents on the horizontal use wyes, vents on the vertical use tees.