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Fabricate a Trap Instead of Buying a P-Trap

3.5K views 9 replies 6 participants last post by  allthumbsdiy  
#1 ·
I have run into an unusual situation. The tenant complained about a slow kitchen sink drain. Upon examination we found that the drain pipe from the trap to where it goes into the wall was sloping uphill.

The standard P-trap when installed would not permit a better pitch.

Would it be practical to fabricate a trip using pieces of pipe so as to get a "trap outlet" higher up and then the pipe going to the drain in the wall would be pitched better?

The alternative would be to cut open the wall and make changes to the vertical drain pipe inside, putting in a tee closer to floor level so the pipe from the sink will be pitched better.
 

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#2 · (Edited)
Just cut the tail piece shorter.
You need a reguler trap so it can be taken apart to clean it out.
What in the world is that pipe with a cap on it suppost to be for?
Lowes and Home Depot sell a special cutter just for this job. There so thin that often they crack. It works better then a reguler pipe cutter or a hack saw.
 
#6 ·
I inspected the drain more closely and it looks as if a regular P-trap will work. I'll use the idea of cutting the sink tailpiece shorter so the trap is higher up. Thanks.
 
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#9 ·
That actually looks like it worked out pretty well, but it's still only as sturdy as the slip joint connection you have to the tailpiece IMHO.


I've had customers ask for something similar to that before, and I just wonder : wouldn't it be a little easier to just be careful?

:huh:
 
#10 ·
Yes, slip joint is the weakest point, but everything before that is far more sturdy than the kits I checked out.

Being careful sounds perfect, except I have energetic 5 and 3 year olds, all fighting each other to grab the food container to feed the dog!

I swear, my dog sees this and runs away, even if she is hungry :)