I’m in the process of remodeling my basement, and would like to redirect a drain for a 1st floor toilet. The drain pipe currently comes through the floor, down to the bottom of the joist, takes a 45 towards the foundation wall and about 3 feet down the wall takes another 45 and then the pipe runs down next to the foundation wall. I would prefer not the have to box in around this with the framing.

Could I put a 90 in after the pipe comes through the floor, run the drain through the joist, and then another 90 and have the pipe run down next to the foundation?

Thanks

Scott

Hi Scott,

I do not advocate the use of 90's in drainage, they slow down the flow allowing solids to drop and build up into a clog. I much prefer using 45's to make a turn.
Having said that, sometime you can't get away from using a 90, but if you must make it a long sweep 90,(see image) and not a short 1/4 bend.
Good luck, tom