Water Closet drain distance to main stack
Asked Jan 3, 2009, 07:27 AM
I am in the middle of enlarging a bathroom and moving the toilet. To put the toilet in the new location, I will have to extend the existing 3" drain line 8 feet from where the original toliet flange was. That flange was already 3 feet from the main stack. That means I would now be 11 feet from the stack wit the new drain line. My first question is, am I running this drain too far and risking clogs? I will be dropping 4" in slope between these two points which should be plenty based on code (1/8" per foot). Of course I'm adding a new vent for this toilet. The second question is that I had to add two 45 degree elbows to get the two drains to connect. Will these cause clog concerns?