Long Story Short...
Bought new house - ensuite shower doesn't work.
Not surprising - ensuite shower head is above hot water tank height (both on 1st floor).
Plumber bought in to fit pump - fitted into loft - new hole put into hot water tank to feed it.
Amazing pressure 1st shower.
2nd shower pressure useless.
Plumber called in again - airlock.
Plumber in loft - airlock shifted - shower amazing.
3rd shower pressure gone again.
I read the installation manual - "Pump should never be fitted above the height of the hot water cylinder as requires gravity pressure - fitting in this way may cause airlocks"...
Plumber called back in again to relocate after quoting instruction manual.
Pump relocated by plumber next to hot water tank in airing cupboard as recommended in the instruction manual.
1st shower pressure amazing.
2nd shower same problem and continuing to this day.
The shower keeps airlocking. This can be cured by shutting the pump off by switching the shower off, and turning back on again (usually harshly to the fully hot position) - after a few coughs and splutters the shower is back to full power again but I shouldn't be having these problems every time I shower.
After reading the manual again it says that 90 deg bends should never be used which they have been.
Also it states that if the shower head is above the height of the cylinder (which it is) a negative head kit should be used.
As I understand it this is merely to kick the pump in if gravity pressure is not adequate to do so, but we do not have a problem with the pump kicking in, just airlocking.
Any advice gladly appreciated.
I don't want to call the same plumber in as I have no confidence any more.
Bought new house - ensuite shower doesn't work.
Not surprising - ensuite shower head is above hot water tank height (both on 1st floor).
Plumber bought in to fit pump - fitted into loft - new hole put into hot water tank to feed it.
Amazing pressure 1st shower.
2nd shower pressure useless.
Plumber called in again - airlock.
Plumber in loft - airlock shifted - shower amazing.
3rd shower pressure gone again.
I read the installation manual - "Pump should never be fitted above the height of the hot water cylinder as requires gravity pressure - fitting in this way may cause airlocks"...
Plumber called back in again to relocate after quoting instruction manual.
Pump relocated by plumber next to hot water tank in airing cupboard as recommended in the instruction manual.
1st shower pressure amazing.
2nd shower same problem and continuing to this day.
The shower keeps airlocking. This can be cured by shutting the pump off by switching the shower off, and turning back on again (usually harshly to the fully hot position) - after a few coughs and splutters the shower is back to full power again but I shouldn't be having these problems every time I shower.
After reading the manual again it says that 90 deg bends should never be used which they have been.
Also it states that if the shower head is above the height of the cylinder (which it is) a negative head kit should be used.
As I understand it this is merely to kick the pump in if gravity pressure is not adequate to do so, but we do not have a problem with the pump kicking in, just airlocking.
Any advice gladly appreciated.
I don't want to call the same plumber in as I have no confidence any more.