quicksandfarmer
Veteran Member
I really don't think it's air.
Downstream of the pump, air only enters when the pressure is at or below atmospheric pressure. If you drain the pipes and refill them, yes, you get air. But if there's a leak it's the water that leaks out, not the air that leaks in.
If the pump is sucking air, that shows up as the pump being unable to achieve pressure, as the pump can't move air. So you get low pressure, low flow and long run times. That doesn't seem to be happening here.
I'm sticking with my guess that it's not air, it's another gas being formed somewhere in the system.
Downstream of the pump, air only enters when the pressure is at or below atmospheric pressure. If you drain the pipes and refill them, yes, you get air. But if there's a leak it's the water that leaks out, not the air that leaks in.
If the pump is sucking air, that shows up as the pump being unable to achieve pressure, as the pump can't move air. So you get low pressure, low flow and long run times. That doesn't seem to be happening here.
I'm sticking with my guess that it's not air, it's another gas being formed somewhere in the system.