11/2" trap to 2"

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11/2" trap to 2"
Author: Dozer2 (NY) I am installing a shower base in place of a tub. How do I change the trap to a 2" from a 11/2".Do I have to? Edited 1 times.
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Re: 11/2" trap to 2"
Author: Wheelchair (IL) Are you sure that 2" will be enough? Best Wishes
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Re: 11/2" trap to 2"
Author: North Carolina Plumber (NC) Either use a 2" X 1 1/2" bushing in the shower drain itself, or run 2" all the way til it ties into a 3" pipe. I think Wheelchair was meaning do you think 1 1/2" is enough, not here in NC it isn't- codewise. 2" is the minimum allowed by code on a showerdrain.
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Re: 11/2" trap to 2"
Author: Dozer2 (NY) This is an upstairs bathroom. Can't get back to 3"
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Re: 11/2" trap to 2"
Author: techman (PA) HI, DON'T CHANGE THE TRAP, THE INTERNATIONAL PLUMBING CODE (IPC) USED BY MANY STATES ALLOWS A 1 1/2" MINIMUM SHOWER TRAP, SEE SECTION 709.1; THE DRAIN PIPE IS ONLY 1 1/2", A 2" TRAP WOULDN'T DO ANY GOOD. HAVE A GOOD DAY
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