My toilet currently drains into a 90 degree 3" x 3" bend with a 2" side inlet. The bathtub & lavatory both join just upstream and outfall into the 2" side inlet.

I am shifting my toilet over a foot and was wondering if it would be a better idea to outfall the 2" tub/lav drain into a fitting just downstream of the closet bend or does it really matter that it outfalls directly into the bend? It seems to work OK under the current configuration but since I was going to be modifying the outfall somewhat anyway...

Thanks

It would be better if the 2" is connected upstream so the toilet does not flow past it.

it would be better if the 2" is connected upstream so the toilet does not flow past it.



I thought the same . The only practical way I see to accomplish that would be to replace the existing closetbend/side inlet with a 90 degree bend with an "in-line" end inlet. The lav/tub drain would still go directly through the toilet drain bend. Actually, that might work a bit better from an install standpoint even if the performance is unchanged.

Thanks