This is a follow-up question of sorts to something I asked the other day regarding installation of a second toilet, but is a new subject. The previous thread is here: https://terrylove.com/forums/showthread.php?37177-Need-your-input-on-relocating-4-vent-waste-CI
My 4" soil stack shifts approximately 16" due to the walls not being aligned. This shift occurs in a 26" dead space inside of a dropped ceiling. Due to space constraints, the plumber accomplished this by jogging the pipe at a 13° angle, which apparently was signed off by the city code inspector.
I'll be in here connecting a Wye for an additional toilet (probably in the lower vertical section). This would be an opportune time to correct this slope, if it's wrong.
My concern is that, at such a slope, am I up to code? Is this setting me up for a clogged waste line? I am working under the impression that anything less than 45° is no longer vertical, and that a 13° slope is well over the recommended 1/4" per foot for a horizontal run.
However, I don't have room to run 45° in this space, due to the space taken up by the Tee connecting to the existing toilet. As I see it, I have three choices:
1. Should I leave it as is?
2. Should I / can I transition to horizontal for 16", then back to vertical?
3. Should I remove the existing Tee, run the stack transition at 45°, and re-connect the existing toilet using a Wye?
My 4" soil stack shifts approximately 16" due to the walls not being aligned. This shift occurs in a 26" dead space inside of a dropped ceiling. Due to space constraints, the plumber accomplished this by jogging the pipe at a 13° angle, which apparently was signed off by the city code inspector.
I'll be in here connecting a Wye for an additional toilet (probably in the lower vertical section). This would be an opportune time to correct this slope, if it's wrong.
My concern is that, at such a slope, am I up to code? Is this setting me up for a clogged waste line? I am working under the impression that anything less than 45° is no longer vertical, and that a 13° slope is well over the recommended 1/4" per foot for a horizontal run.
However, I don't have room to run 45° in this space, due to the space taken up by the Tee connecting to the existing toilet. As I see it, I have three choices:
1. Should I leave it as is?
2. Should I / can I transition to horizontal for 16", then back to vertical?
3. Should I remove the existing Tee, run the stack transition at 45°, and re-connect the existing toilet using a Wye?