New Bathroom

[scottpetrie]

Yes at the minute all taps are seperate. Its just weird that all taps in the house seem to be high pressured apart fromthe shower. I know what you mean with flow/pressure, but the shower on fully cold and fully hot isnt the best, but the taps are

 

[Madrab]

You will find that the taps are what are classed as full flow taps, i.e. that taps are as good as full bore all the way through once the valve is fully open therefore it doesn't need a lot of pressure to deliver a good flow.

The shower doesn't, it has lots of narrow waterways, valves and galleries that restrict the flow and therefore needs higher pressure to work correctly

 

[scottpetrie]

So would teeing into mains cold be better

 

[Madrab]

If the cold is mains fed you’ll get unbalanced feeds and the cold will out-do the hot... even pushing the hot back up the supply if it’s a cheap n nasty valve or it goes defective.

 

[scottpetrie]

Okay. Any suggestions to improve my pressure bedore I got and fit my new shower and tile it in?

 

[Madrab]

If the hot and cold is cistern fed from the attic then you can :-

• Raise the cold water cistern higher
• Pump the hot and cold

Or :-

• Convert the system to mains fed hot and cold if your cold water flow and pressure can accommodate it

 

[scottpetrie]

Okay. Not sure if I could get much more height in my attic that would make any difference. How would I go about converting to mains fed?

 

[Madrab]

You could go the combi boiler route if it's only you & partner in the house

Anything more in the way of hot water usage required then you would need to look at an unvented hot water. This would need a :-

• Mains survey - is cold mains pressure and flow suitable to feed an unvented hot water cylinder
• Location survey - Is there space/suitable location for an suitable sized unvented hot water cylinder installation
• Heat source survey - Is the boiler suitable to heat an unvented hot water cylinder

There will be a significant cost to swapping over to mains fed hot & cold

 

[BWC]

Just have cold showers ?

 

[John D v2.0]

Just have cold showers ?

Just don't wash?

 

[BWC]

persistent silly trolling

 

[BWC]

persistent silly trolling

 

[scottpetrie]

Would teeing off 22mm supply make any diference rather than 15mm?

 

[Madrab]

@scottpetrie .... I do appreciate your dogged determination but as far as your shower is concerned then no, it's the restrictions within the shower that's the main issue I would think, nothing else.

Only way to up the pressure for the shower is change to mains hot and cold or pump the supplies I'm afraid.