Andrew Garvin
New Member
I’ll do my best to describe the situation and question accurately:
The two bowls of a kitchen sink connect to a double sanitary tee on a 3” waste stack. The branches of the tee are 1- ½“. The only thing above the double tee is a 2” vent line. Below the sanitary tee is a cleanout tee. About 10" below the cleanout tee is a slab on grade.
If permissible, I would like to connect the drain line from a washing machine to this waste stack. There’s room between the slab and the double sanitary tee to shift the cleanout tee upward (closer to the sanitary tee) or downward (toward the slab).
Can a sanitary tee (or other connection) be inserted in this vertical assembly for the washing machine drain? If so, is it important whether it’s above or below the cleanout? If such a connection cannot be done, why not? I’ve been told third hand that code will not allow such a connection, but no explanation has been provided.
(The trap of the washing machine would probably have an independent vent, so that’s probably not an issue.)
The two bowls of a kitchen sink connect to a double sanitary tee on a 3” waste stack. The branches of the tee are 1- ½“. The only thing above the double tee is a 2” vent line. Below the sanitary tee is a cleanout tee. About 10" below the cleanout tee is a slab on grade.
If permissible, I would like to connect the drain line from a washing machine to this waste stack. There’s room between the slab and the double sanitary tee to shift the cleanout tee upward (closer to the sanitary tee) or downward (toward the slab).
Can a sanitary tee (or other connection) be inserted in this vertical assembly for the washing machine drain? If so, is it important whether it’s above or below the cleanout? If such a connection cannot be done, why not? I’ve been told third hand that code will not allow such a connection, but no explanation has been provided.
(The trap of the washing machine would probably have an independent vent, so that’s probably not an issue.)