shyitalian
New Member
I need to do a DWV inspection test and need to stop up the system at a backwater valve.
What is the best/easiest/cheapest way to block flow at the valve?
Do I use something like a clean-seal pneumatic pipe plug to keep the valve’s flapper from opening?
Any advice would be a huge help
What is the best/easiest/cheapest way to block flow at the valve?
Do I use something like a clean-seal pneumatic pipe plug to keep the valve’s flapper from opening?
Any advice would be a huge help
