no hot water

[sox]

just fitted a shower pump to the expance pip of cylinder but now there is no hot water to the rest of the house. the hot water runs for about 4mins & the pressure is low

 

[sox]

the two large tank are connected together & i think there would not run out of water

 

[Plamber]

How long does it take for the hot water to start working again? if you switch it off then on again does it work at all or do you have to wait?

If there is no essex or surrey flange fitted it could well be pulling in air.

 

[sox]

i think my nexts step is to fit a surrey flange because it dose show a surrey flange in the diagram in the instructions. as anybody fitted a grundfos shower pump model stp 2bar pos head &did it need a surrey flange

 

[Plamber]

you will have to move the pump then, from what ive read you have fit the pump on the vent pipe

 

[WHPES]

If the pump is on the vent pipe (above the horizontal part from the top of the cylinder then that's your problem. If you are going to fit it to the cylinder outlet at all it needs to be from the horizontal part (the connection angled slightly downwards to avoid filling up with air when stood).

Like it has been said, it is usually actually easier in any cast to fit an essex or surrey flange than to start messing about with the outlet pipe.

 

[easyt]

iv been in some houses with a normal F & E tank

then a CW tank for the hot cylinder and then another separate one for the cold feeds

I have three tanks in loft. One for CH. One for Hot. One for cold to bath only (presumably to equalise pressure for mixer tap with combined shower.

 

[sox]

i have fitted it to the horizontal pipe coming out of the cylinder at a slight angle down to the pump