How many 90 degree turns are OK in a drain pipe?
I'm in the early stages of a major remodel of an old row house and just noticed that the drain pipe the plumber installed for a new washer on the second floor is way too close to the trim of an old window, which I wanted to keep as is, on the 1st floor. I'm pretty sure the pipe is so close to the window trim because there's a support beam for the second floor he was avoiding just to the left. But leaving it as is means cutting off the trim or losing the window, when the chase is built around he pipes.
So, I'm wondering....is there some limit to the number of 90 degree turns , a drain pipe should have? There are three in short order as the pipe comes up from the basement to the first floor. Could we have it make another 90 degree turn a few feet up to avoid the window and then back again above the window where there will be a bulkhead anyway to accommodate some other design/plumbing issues?
Or is this asking for clogs and trouble down the road?