Daniel7
New Member
Hello everyone. Could anyone help with a question about DWV best practice? I'm installing 3' and 2" waste lines from upper level to connect to the main 4" house waste line along the ceiling of the Basement. This question is so much about what is allowed by plumbing code - but what is best practice for best quality flow.
Question:
1. Which option does everyone recommend? See attached drawing that I drew up. I'm leaning towards OPTION A where I can as the best approach. And using OPTION C as second best option where OPTION A is not possible. Is this correct? Or is something different even better?
OPTION A - Connect at a 45 degree both in plan & elevation to the main 4"
OPTION B - Connect at a 45 degree laterally to the main 4"
OPTION C - Connect at a 45 degree vertically from above to the main 4"
2. Also - is there a benefit to sloping the main 4" line more than 1/4:12? Or should I just stick with 1/4:12?
Project Information:
This is for a residential project, ~2,500 SF house major renovation in Portland, Oregon. Using ABS DWV piping. Using the current International Residential code.
Thank you everyone! I very much appreciate and respect your insidghts,
Daniel
Question:
1. Which option does everyone recommend? See attached drawing that I drew up. I'm leaning towards OPTION A where I can as the best approach. And using OPTION C as second best option where OPTION A is not possible. Is this correct? Or is something different even better?
OPTION A - Connect at a 45 degree both in plan & elevation to the main 4"
OPTION B - Connect at a 45 degree laterally to the main 4"
OPTION C - Connect at a 45 degree vertically from above to the main 4"
2. Also - is there a benefit to sloping the main 4" line more than 1/4:12? Or should I just stick with 1/4:12?
Project Information:
This is for a residential project, ~2,500 SF house major renovation in Portland, Oregon. Using ABS DWV piping. Using the current International Residential code.
Thank you everyone! I very much appreciate and respect your insidghts,
Daniel