Giles
Retired tool & Die and Mechanic
I have a problem in an older basement home. The plumbing drain is sch.40 PVC. The kitchen sink and washing machine are on a 2" line about 60' from where they enter the main 4" line going down beneath the slab. I do not have a garbage disposel and all cooking and dinnerware utinsels are wiped out before washing. Very little food particles and cooking grease are carried to my septic system.
I know and understand the importance of 1/4" drop per foot, but is it critical in my 2" drain situation? What is the minumum drop per foot for my 2" drain, considering the distance and the material that flows through it? It will be a major indertaking to correct this drain mistake. The amount of drop for the entire 60' is now 9". I have lived here for 3 years and I am just now encountering a drain problem.
Basically, what I am asking is: Can I get by with less then 1/4" per foot drop with dirty water?
I know and understand the importance of 1/4" drop per foot, but is it critical in my 2" drain situation? What is the minumum drop per foot for my 2" drain, considering the distance and the material that flows through it? It will be a major indertaking to correct this drain mistake. The amount of drop for the entire 60' is now 9". I have lived here for 3 years and I am just now encountering a drain problem.
Basically, what I am asking is: Can I get by with less then 1/4" per foot drop with dirty water?