Hey there,
ive a Techflow branded twin impellor shower pump running the bathroom, gravity fed system, the pump has been replaced about a week ago and the problem is the pump just runs for about 3 secs and stops for 10 secs then back on etc... when there are no taps running anywhere, its constantly doing this and have noticed that with the indirect hot water cylinder filled with only cold water (HW off) the hot side of the impellor pump seems to be hot, the obvious reason for this I would think is because the impellor on the hot side is the one running intermittently even though there is no hot water in the system.
Now correct me if im wrong but think the hot draw off to the cylinder is connected off the top of the cylinder pipework and NOT a flange from the cylinder causing air to be drawn in from the open vent at the top?? this is allowing a pressure drop to the pump causing the intermittent triggering,
what do you think about this conclusion??
ive a Techflow branded twin impellor shower pump running the bathroom, gravity fed system, the pump has been replaced about a week ago and the problem is the pump just runs for about 3 secs and stops for 10 secs then back on etc... when there are no taps running anywhere, its constantly doing this and have noticed that with the indirect hot water cylinder filled with only cold water (HW off) the hot side of the impellor pump seems to be hot, the obvious reason for this I would think is because the impellor on the hot side is the one running intermittently even though there is no hot water in the system.
Now correct me if im wrong but think the hot draw off to the cylinder is connected off the top of the cylinder pipework and NOT a flange from the cylinder causing air to be drawn in from the open vent at the top?? this is allowing a pressure drop to the pump causing the intermittent triggering,
what do you think about this conclusion??