Bathroom tap water pressure

[garycat]

I am replacing the bathroom suite and want to fit a tap like this one

http://www.tapcentre.com/en/economy-bathroom-taps/...

But it says it requires 0.2 bar pressure. I live in a bungalow with the cold storage tank in the loft, so would I get 0.2 bar from that?

[AndyAudi]

Perhaps by putting some sort of "Floating device" in the loft tank to "Push the water down" and increase the pressure.

[Simpo Two]

0.2 bar is pretty much 'low pressure' - as I understand it's 2 metres head of water. Hence if your tank is 2+ metres higher than the tap, it should be fine.

NB Watch out for the 'flexi-tails' - if they have non-return valves in them it will affect flow - bin and replace.

Edited by Simpo Two on Wednesday 12th August 18:56

[garycat]

Simpo Two said:

NB Watch out for the 'flexi-tails' - if they have non-return valves in them it will affect flow - bin and replace.

What with? normal isolator valves?

[andy43]

AndyAudi said:

Perhaps by putting some sort of "Floating device" in the loft tank to "Push the water down" and increase the pressure.

Now that would work - a big sheet of, oh, I dunno, polystyrene, weighed down with a brick - so the water is pushed down under pressure to the bathroom.
Shower pumps? Unvented cylinders? High tech rubbish!
:rushesofftopatentoffice:

[netherfield]

That's just lees than 3 lbs so if the pipe is big enough it should manage that.

[Simpo Two]

garycat said:

What with? normal isolator valves?

An Abode tap I bought last year had very narrow tails with little flap valves in them, about 6mm diameter. I was critical for flowrate anyway and the chap in the plumbing shop said the valves would make it worse. So I bought two new tails without the constriction of flap valves.

[Paul Drawmer]

andy43 said:

AndyAudi said:

Perhaps by putting some sort of "Floating device" in the loft tank to "Push the water down" and increase the pressure.

Now that would work - a big sheet of, oh, I dunno, polystyrene, weighed down with a brick - so the water is pushed down under pressure to the bathroom.
Shower pumps? Unvented cylinders? High tech rubbish!
:rushesofftopatentoffice:

See you on Dragons' Den soon.

[andy43]

Paul Drawmer said:

andy43 said:

AndyAudi said:

Perhaps by putting some sort of "Floating device" in the loft tank to "Push the water down" and increase the pressure.

Now that would work - a big sheet of, oh, I dunno, polystyrene, weighed down with a brick - so the water is pushed down under pressure to the bathroom.
Shower pumps? Unvented cylinders? High tech rubbish!
:rushesofftopatentoffice:

See you on Dragons' Den soon.

Legend

[King Herald]

AndyAudi said:

Perhaps by putting some sort of "Floating device" in the loft tank to "Push the water down" and increase the pressure.

Was that thread here in PH, or did I read it elsewhere?

[Ricky_M]

I'm guessing the cold supply to the bathroom is tank fed also? If so, this should work, as someone said 0.2 bar is equivalent to 2 meters head of pressure.

If you have mains fed cold water to your bathroom and tank fed hot, it will not work, the higher pressure cold will force its way back through the hot pipework.

If pressure and flow rate is a problem in your house, don't use "ball-o-fix" isolation valves or flexible tap connectors, they reduce the bore down to less than 10mm.