Recommend me a water pump

nads1978 · 30 Nov 2014

I'd like to increase the water pressure at my mothers house. It is a bungalow, with a cold tank in the loft, as high as it can be. Pressure would be 0.2-0.3 bar at the taps.
The kitchen has been fitted with a high pressure tap which means warm water is just a dribble (cold is okay, but doesn't have the restriction of the hot water system). Both bathrooms are to be replaced soon, one has a recent pumped cold feed electric shower, the other is an old one that's similar. I intend to instal mixer showers (and obviously, the extra hot water pipework).

There is a Firebird Olympic 50-82 oil boiler, and a hot water tank on ground floor, to consider.

1) What (type of) pump could I put after the cold tank?
2) Would the above benefit from a pressure vessel? (80L?)
3) Would there be an issue increasing water pressure to the boiler?

I'd rather not remove the existing cold tank.

Boilerman2 · 30 Nov 2014

If you are considering a Booster pump, everything downstream will need to be evaluated the biggest requirement would be to replace the hot water cylinder with an Un-vented type (high pressure) this will include expansion provision for the heated water and the temperature and pressure relief valves you should get a qualified person to attend site to carry out a full survey and prepare a specification etc - this is not a project to "muddle" through!

Classic40 · 30 Nov 2014

Grundfos UPA15-90

I have one to fit to my vented setup. Adds 0.5 to 0.75 bar.

nads1978 · 30 Nov 2014

Boilerman2 said:
.....hot water cylinder with an Un-vented type (high pressure) ...... to "muddle" through!

Thanks, exactly why I asked. Info I hadn't considered!

nads1978 · 30 Nov 2014

Carl85 said:
Grundfos UPA15-90

I have one to fit to my vented setup. Adds 0.5 to 0.75 bar.

That is interesting, says it works with an open system. I'll get someone in to assess/do it, but did you get a noticible difference, was yours bad before?

Classic40 · 2 Dec 2014

nads1978 said:
Carl85 said:

Grundfos UPA15-90

I have one to fit to my vented setup. Adds 0.5 to 0.75 bar.

Click to expand...

That is interesting, says it works with an open system. I'll get someone in to assess/do it, but did you get a noticible difference, was yours bad before?

Not fitted it yet; My tank is approx 0.2 meters above the cylinder so my hot water pressure isn't great. (It's aided with old taps which are not 1/4 turn)

I am hoping I will be able to fit a mixer shower with a PEV (Mains cold and pumped hot from cylinder).

nads1978 · 4 Mar 2015

Carl85 said:
Not fitted it yet

Hi, did you get around to fitting it?

Classic40 · 18 Jan 2016

nads1978 said:
Carl85 said:

Not fitted it yet

Click to expand...

Hi, did you get around to fitting it?

Nope. Still on the list of things to do.

Did you fit a pump to sort your issue?

muggles · 18 Jan 2016

And the award for longest ever procrastination session goes to.......

Madrab · 18 Jan 2016

Lol, pressure can't be that bad if it's still not on 12 months later

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Recommend me a water pump

Classic40

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