DIYbanter - View Single Post - Long turn vs. short turn 90deg elbow: sanitary from toilets

Tekkie®

posted for all of us...

Hi. I'm replacing the cast iron 4" sanitary lines to my two bathrooms with PVC.
They drop vertically from each bathroom and turn 90degrees to horizontal in
the basement. This turn is via existing long turn/long sweep elbows.

Is there any problem if I switch these to short turn 90 deg elbows? I'd like to
regain the headroom in the basement and keep these pipes within the ceiling
joist level, instead of having these stick out below the (future) finished ceiling
level in the basement. I can't find anything in the plumbing codes on this. All
advice appreciated.

Thanks
Theodore.

I don't think so. Why not add a clean-out while doing it? Might help later.

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Tekkie