Bathtub renovation - old p-trap & copper pipes

[Stevebg4]

Hello folks,

This is my first post and I have read many good plumbing suggestions.
I am doing a DIY bathroom renovation at my home and my old steel tub has 1/2in copper drain pipes and there are no leaks and I assume probably 25-30 old pipes, see picture.
My new acrylic tub is 60inx30in and its the same dimensions as the old tub.

My questions are:

Should I remove the existing old p trap, copper pipes, elbows which I think are copper and cast iron perhaps but not sure 100% ?

If I don't have the replace the p-trap, copper piping, then which type of adapter or coupling do I need to get to put on my existing p-trap to my PVC pipe drain kit ?

If I need to replace, then can I make the copper pipe cut at the location marked ?

Do I replace with new PVC or ABS piping, elbows, p-trap ?

thanks

 

[Terry]

If you using PVC for the tub drain, then cut the copper and couple it with a shield coupling.
The trap arm rises at a 2% slope, 1/4" per foot.
Your floor joists look to be in the wrong spot for that tub. There isn't much left of them.

 

[Sponsor]

 

[Stevebg4]

Terry,

thanks for the quick reply and its unfortunate that floor joist where in that location and where cut partially to install the p trap.
Any suggestions to add additional support on the existing floor joist or I need to replace them ?

Can I cut the copper at the marked location, shown in pic below, and then install a Proflex 1-1/2 in. Neoprene Shielded Coupling and put PVC piping with elbows and a new p- trap ?

thanks

 

[Mr tee]

The line from the trap to the vent (trap arm) cannot drop down like that, the existing drain is wrong. Gerber and others make a side outlet tub drain drain that you could probably make work. They are not very common and you may have to hunt for one.

 

[Stevebg4]

thanks for the good advice, Mr tee

 

[Reach4]

How about the output of a U of a p-trap goes where the red line in #3 is. U fits into space to the right. Drain from tub bends to horizontal, and goes over to the input of the U.

 

[Tuttles Revenge]

Agree with Reach4.. Install the trap where the red line is and plumb the waste and overflow to the trap.

 

[Stevebg4]

Hi All,

Below is the new tub drain rough- in that I did so far, does it look ok and is up to code ?

thanks