How to run the drain pipes? Is 90 degree OK?
Asked Jul 18, 2007, 12:22 PM
I'm in the process of replacing some galvanized pipe with PVC, but I'm unsure of the best way to run the drain.
A shower drain of 1 1/2" galvanized pipe runs with a couple of smaller 1/8 bends and then makes a 90 degree bend before a vertical sink drain of 1 1/4" pipe is connected to this line , which then runs about 4 feet before it connects to the main stack.
I have replaced the 1 1/4" sink drain with a 1 1/2" PVC and I now need to connect the shower drain and the vertical sink drain.
Is it OK to "remove" the 1/8 bends and just run a straight 1 1/2" PVC then make it turn 90 degrees as the sink drain is connected?
Not sure if a 90 degree turn is too much because the sink drain is in the same spot. The drain is horizontal with a slope of probably 1/4" per foot.
A drawing is attached.
By the way, I cannot replace all of the galvanized pipe due to space issues.