Pman6
Member
if i shut off the cold water supply valve at the water heater, but not the main shutoff to the house, water flows back through the hot water supply into the water heater.
does this suggest I have an open system?
My current Rheem wh is 20 years old, never had an expansion tank.
does this suggest I have an open system?
My current Rheem wh is 20 years old, never had an expansion tank.