Raising cold water tank

NiceGuyG

Hi all, I'm about to start work on my mums bathroom which will include fitting a power shower. Before I begin I thought I would raise the cold water storage tank about 1 metre from where it is at the mo in the attic (Gravity fed system).

Do you guys think this will have any real impact on the hot water pressure (Cold taps are of the mains) or should I not bother.

My reasoning behind this is that if the pressure of the hot water to the pump is increased then so will the pumped output of the shower.

Also in the attic is a header tank which I have never seen before. The water in this small tank is warm. Could some please tell me the purpose of this small tank as I plan to raise the cold water tank above this little thing.

Cheers.


G.

Canucklehead

Hi

Raising the tank will make no difference to the shower pump.It might notice it in the bath or basin taps but not worth the effort IMO.

Follow the instructions with the pump regarding the connections.
You will need 50 gallons of cold stored water.
You will need to run the cold to the pump from the stored water tank.

The small feed/expansion tank for the heating system should not be warm in an ideal world , but can depending on how long it's been running. Check it is not hot or steaming at different times when the system is running.If it is you have a basic problem with the pipework .
Good luck.
Corgi Guy.

NiceGuyG

Thanks, you just saved me a ton of time

NiceGuyG

would you recommend running 22mm pipework right up to the pump and then dropping to the 15mm push fit connection or 22 mm all the way.

eilz

Canucklehead wrote: »

Hi

The small feed/expansion tank for the heating system should not be warm in an ideal world , but can depending on how long it's been running. Check it is not hot or steaming at different times when the system is running.If it is you have a basic problem with the pipework .
Good luck.
Corgi Guy.

Sorry if this sound silly, but why shouldn't the small tank be warm? And what basic problem with pipework would you have if if was warm?

Thanks

NiceGuyG

Our heating had been on for several hours earlier which colud account for the warm water.

missile

OP"I plan to raise the cold water tank above this little thing."

Don't do that, you could flood the loft

Avoriaz

As above, don’t bother moving the cold water tank if you are installing a pump.

The central heating feed tank should not get warm. If it does it means that you have a problem with the system.

There are a few possible causes. The most likely is over pumping. The c/h pump is probably pumping hot water up the expansion pipe. Is the pump set on too high a setting? Is there a bypass circuit that is not turned on sufficiently?

You really need to get expert advice as my knowledge is a bit limited and out of date.

Excessive over pumping not only wastes heat but it allows the water to absorb oxygen and that can slowly rust the insides of your radiators.

Canucklehead

NiceGuyG wrote: »

would you recommend running 22mm pipework right up to the pump and then dropping to the 15mm push fit connection or 22 mm all the way.

Yes 22mm to pump. Unless your shower is a long way from the pump then 15mm should do.
Corgi Guy.

NiceGuyG

Thanks for all the brill advice. I am going to do the following;
1) Not touch the water tank

2) check settings for Central heating

3) The distance in pipe length from cold tank to pump (Pump is one of those built in things that sits on the wall)) is about 6 metres so run it on 22mm until I reach the 15mm pushfit on the pump at which point I will drop it down.

4) boiler to pump distancve only 3 metres so pipes as above.

5) have a shower.


Thanks all!!