Shower Pump HELP!!

icemanjimbo04

Hi all,

Im having trouble with my shower during the last few months.
Its the en suite shower run by (positive) pump which won't run properly, it starts and stops for a couple of mins before running steady on a medium temperature setting.
Any adjustment to the temerature knob seems to start it pulsing on and off
for a couple of minutes.

The pump (Stuart Turner ST66) was less than 2 years old but today I decided to buy a new one (Stuart Turner Showermate 1.5) but the problem is still there, so a faulty pump is ruled out..

The pump is located below the tank in the hot press, fed from top of tank in hot press and cold feed from attic.
The original pump worked fine for over a year.

Ive searched online but cant find much usefull help and im running out of ideas..

Could it be low pressure running to the pump or a blocked filter behind the shower controls in the wall, or faulty mixer tap in shower??

Any help would be great,
Thanks folks.

Joey the lips

icemanjimbo04 wrote: »

Hi all,

Im having trouble with my shower during the last few months.
Its the en suite shower run by (positive) pump which won't run properly, it starts and stops for a couple of mins before running steady on a medium temperature setting.
Any adjustment to the temerature knob seems to start it pulsing on and off
for a couple of minutes.

The pump (Stuart Turner ST66) was less than 2 years old but today I decided to buy a new one (Stuart Turner Showermate 1.5) but the problem is still there, so a faulty pump is ruled out..

The pump is located below the tank in the hot press, fed from top of tank in hot press and cold feed from attic.
The original pump worked fine for over a year.

Ive searched online but cant find much usefull help and im running out of ideas..

Could it be low pressure running to the pump or a blocked filter behind the shower controls in the wall, or faulty mixer tap in shower??

Any help would be great,
Thanks folks.

It sounds like you may be starving the pump by connecting into the expansion pipe rather than a surrey flange or warrick flange. Can you take a picture of where the pump connects to the cylinder.. Thanks

K.Flyer

icemanjimbo04 wrote: »

The pump (Stuart Turner ST66) was less than 2 years old but today I decided to buy a new one (Stuart Turner Showermate 1.5) but the problem is still there, so a faulty pump is ruled out..

The pump is located below the tank in the hot press, fed from top of tank in hot press and cold feed from attic.
The original pump worked fine for over a year.

It sounds to me that you may have a blockage in one of the pipes if everything worked fine for a year.
Its not uncommon for a small piece of debris to make its way into a pipe and jam on a fitting.
With the aid of a water vacuum (cheap to hire for a day) remove the pipes going to the pump and catching the water with the vacuum turn on each valve one at a time and see how good the flow is. If one is radically different you know which way to work back. If both pipes flow much the same then the problem lies between the pump and the shower valve. A bit trickier to rectify if your mixer is in behind the wall but if installed correctly you should be able to get in at the connections. Connect the water vacuum to the each pipe from the pump going to the shower valve in turn and check the suction at the valve. If there is a noticable difference then you know which pipe you have to work on. The vacuum may pull the dirt back and clear it out but if not an air compresser is ideal for cleaning blockages like this. But send the pressurised air from the mixer end of the pipe back towards the open pipes at the pump. Best of luck.

sullzz

What type of shower valve is it , it sounds like a blocked filter , or if it's thermostatic it might need a new cartridge .