Hawk47
New Member
Hello,
I am in the planning process for adding a basement bathroom. Code requires a backwater valve, but to me it is unclear if this will require an additional cleanout. Main drain is 4" ABS, which I will wye out of in the basement slab for the bathroom, also in 4"abs, and then install the valve. Existing cleanout is about ten feet from where drain goes out side; new wye will be roughly halfway between.
I have seen others online install these valves, and then install another cleanout downstream right before the line exits the house. Can't find any references requiring this, and I assumed the valve itself counts as a cleanout.
I am in the planning process for adding a basement bathroom. Code requires a backwater valve, but to me it is unclear if this will require an additional cleanout. Main drain is 4" ABS, which I will wye out of in the basement slab for the bathroom, also in 4"abs, and then install the valve. Existing cleanout is about ten feet from where drain goes out side; new wye will be roughly halfway between.
I have seen others online install these valves, and then install another cleanout downstream right before the line exits the house. Can't find any references requiring this, and I assumed the valve itself counts as a cleanout.