My plumbers need to add a Backflow valve to the piping to our Neptune system.
This is per the WSSC instructions in our area. How do I find out the size of the Backflow valve needed to handle this product?
My plumbers need to add a Backflow valve to the piping to our Neptune system.
This is per the WSSC instructions in our area. How do I find out the size of the Backflow valve needed to handle this product?
