I'm thinking about moving my HWT to another room in the house. I was going to just bust up the concrete and put in a 3" P-trap and bit of pipe and then cut off the pipe flush to the new floor and put a floor drain grate on it. My question is, if you guys had just 3" ABS how about you trap seal prime this drain without using an indirect connection priming from above?
I know if I buy actually floor drains (which would cost more) they would have female connectiotns on them from the manufacturer for adding a primer line.
What tools and fittings would you use to tap into abs? I don't think I've actually seen it done. I've seen the finished product in the feild but never witnessed to doing of it.
A drill bit and a pipe thread tap. Or use a tee in the vertical pipe with the proper sized bushing(s) into it. How you make the connection is NOT as important and HOW you supply the water to the trap.
does the primer line have to be in a sleeve, or can it just be placed into the gravel when put under the floor, im am doing that right now
1/2" usually because it is a gravity drain and too small a pipe, might cause overflow at the primer, depending on the volume of water it releases.