Shower Pump Help / Advice

[skilly1]

Our shower pump is not very powerful and seems to be losing power gradualy over the past few months.

We did not install the pump so no idea what the pressure should be like. Any suggestions on what pump to replace with. I am quite handy with DIY and was thinking of having a go - can't be that hard? Can I increase the pressure in the new pump?

Edited by skilly1 on Monday 26th January 13:28

[skilly1]

Possibly, makes noise ike there is air in there. I thought that would be due to the pump seals going?

Any ideas how you bleed it?

[skilly1]

Yes it is a Stuart Tuner. Did not know there were filters - I will remove tonight and have a look.

[skilly1]

So you just turn of the water valve on all 4 of the flexible hoses and undo the 4 brass fixing at the bottom with a spanner?

[skilly1]

I have no idea, I will take a better pic tonight of the whole set-up.

[skilly1]

Does not seem to be a 'surrey' valve at the top. I have cleaned out the filters and made no difference (not much in there).

Found out the pump is from 2008, and a service kit is £200 so I may buy a new one unless the 'surrey' valve will solve the problem?

[skilly1]

Scratch that - just googled Surrey flange and its does have one. Definatly sounds like air or cavitation in the pump. I turned off the power and tuned on the shower as this is how they suggest you bleed it. Again made no difference. Any other ideas?

[skilly1]

We have two showers and both have the same problem, one shower was recently replaced. I have cleaned filters in pump.

If I turn it to full cold pressure is a lot more pressure on both showers - how I would expect it to be.

Edited by skilly1 on Tuesday 27th January 08:32

[skilly1]

Magic919 said:

Why do you expect fully cold to have better flow? Mine are equal. If you have poor hot flow and use a thermostatic valve then you'll limit the overall flow. It'll be worse during the cold months and better in Summer.

I agree, it seems the hot water pressure is causing the problems, not the cold water pressure. The pump is a dual hot and cold pump, as the cold is working does that mean it can't be the pump?

Any idea what coud restict hot water flow? It can't be outside of the airing cupboard as I recently added a flow to the second shower which comes from pipes in the airing cupboard at the top and that has the same problems.

[skilly1]

Gingerbread Man said:

Tried pulling an airlock out of the hot?

No - how do you do that?

[skilly1]

Gingerbread Man said:

See previous post gubbins

- Sorry missed you post earlier about sucking it out.

[skilly1]

Well I have tried sucking out the air lock, checked all the valves are fuly open and had a look in the water tank (very clean and no blockages). I took off the shower head and tried going from hot to cold, with no luck. I also noticed downstiars (no pump) the cold runs quicker than the hot.

Water tank:


I have noticed the wide copper pipework reduces down to thinner plastic pipework in the loft, no idea why but both hot and cold do this.


This is where the 2nd shower splits off (spare pipe is the old direct feed):