CH Pump Problem

[gas112]

Update:

I turned off the cold feed to the header F&E tank, drain from ground floor drain valve for good 5 mins, went to the loft, water level in header tank down to third; pls see pic below.

Verdict?

View attachment 401445

View attachment 401446


View attachment 401447
View attachment 401450

did you look at the level before draining ? 5 minutes would drop the tank by more than a third

 

[fixitflav]

did you look at the level before draining ? 5 minutes would drop the tank by more than a third

That's what I was getting at, the starting point isn't quite clear

 

[yartin]

did you look at the level before draining ? 5 minutes would drop the tank by more than a third

The tank was full, by the dry line. The flow rate of drained water as per photo above.

 

[yartin]

did you look at the level before draining ? 5 minutes would drop the tank by more than a third

The tank was full, by the dry line. The flow rate of drained water as per photo above.

 

[fixitflav]

The tank was full, by the dry line. The flow rate of drained water as per photo above.

You can say that again!

 

[Johntheo5]

Update:

I turned off the cold feed to the header F&E tank, drain from ground floor drain valve for good 5 mins, went to the loft, water level in header tank down to third; pls see pic below.

Verdict?

View attachment 401445

View attachment 401446


View attachment 401447
View attachment 401450

You should give the F&E Cistern a thorough clean out before refilling the system. Also consider isolating the pump, remove the 4 stud bolts and pump head and clean out the impeller vanes with. a steel scriber or small screwdriver and a tie wrap, those Selectrics are outstanding pumps.