Hello,
On my bathroom remodel project, I'm trying to figure out the best course for my building drain, for ease of tying in my branch drains and connecting to the building sewer. A couple questions came up:
1) If I want to transition a drain from vertical to horizontal, and I have enough space/altitude, which is better, a long turn 90, or two 45s with a short section of pipe in between?2) If I have a vertical drain line that is offset from a horizontal drain I want to tie into, I could use a long turn 90 to go horizontal, and then use a WYE (flat) to join the horizontal drains. Is it better to roll the WYE inlet up and use a shallower bend on the vertical drain (e.g. a 60 or a 45 + a 22.5)? That seems trickier to line up.
3) If a horizontal drain line goes vertical, and then goes horizontal again, is there any restriction on the net angle in the plane the drain has turned? For example, if I stack two long turn 90s, can I have an arbitrary angle between the horizontal inlet and the horizontal outlet (as seen from above)?Thanks, Wayne