Dear plumber,
In what used to be a coin wash, the ABS plastic drains used to be about two feet sticking out of a concrete floor. They have been cut of at the floor.
I want to install a one square foot by ten foot concrete trench for our commercial washers to dump in. as the vent was tied into the ABS above the floor I need to know were to tie in the vent.
PS The drains are four inch.
I’d realy appreciate any information you can help me with.
A handy man in need.
Richard Cosentino