Can anyone please tell if it's possible for the header tank water level to rise when no water is entering through the Ball Valve flow or the expansion pipe? When the Washing Machine is used the water level rises to a point above the overflow level, I can only assume that back pressure is causing wat...
Can anyone please tell if it's possible for the header tank water level to rise when no water is entering through the Ball Valve flow or the expansion pipe? When the Washing Machine is used the water level rises to a point above the overflow level, I can only assume that back pressure is causing wat...
