Hot water flow is dismal!

[Nimby97]

Hi,

planning on moving into a ground floor flat soon and I have nearly finished a bathroom refurb. Just fitted the basin and a new monobloc waterfall type tap.

The cold water output through the tap is great but the hot water is pretty dismal. The supply is from a Fortic tank in a cupboard next to the bathroom so I wasn't expecting a great flow as the header is not that high but even so, the bathroom flow is poor.

The kitchen flow through ordinary pillar taps is much better.

Is it that the hot water flow/feed is not sufficient for a new style monobloc tap? I seem to recall that when my m-in-law lived in the flat the basin feed through ordinary taps wasn't too bad.

The only change to pipework has been the use of flexible tap hoses for the new tap.

Can anyone help with advice/solution?

Much appreciate any help.

 

[REDSAW]

whats the pressure rating for the new tap?

 

[Nimby97]

Hi Redsaw

the blurb says recommended water pressure is 1-5 bar ?

Means nothing to me!!

 

[Derek Hardman]

A plumber can test the water flow for you, and suggest ways to improve it if required.

 

[Rickster123]

Hi Redsaw

the blurb says recommended water pressure is 1-5 bar ?

Means nothing to me!!

its designed for high pressure. Not your system I'm afraid.

 

[wiggers]

You said it yourself monobloc! Fortics have poor hot flow so not ideal, water is scaling down to 10-12mm pipework into monobloc. can you change to taps or is your basin one tap hole

 

[REDSAW]

wrong tap for installation. you need a 0.1 bar tap as your primatic header is only about 1 meter above the tap (0.1bar)
so it will never work as its designed too.

 

[GArlington]

its designed for high pressure. Not your system I'm afraid.

1 bar (minimum requirement) is not that high a pressure.

 

[Rickster123]

1 bar (minimum requirement) is not that high a pressure.

Its high enough if all you've got is tank fed!

 

[AWheating]

that what he said.


the best solution would be to fit a two tap hole basin and and two standard type taps imo. Check any taps spec to ensure its suitable for low pressures.

 

[Howsie]

1 bar (minimum requirement) is not that high a pressure.

It is on a gravity system.

 

[Nimby97]

Hi

thank you all for your help! I am stuck with a mono bloc as I only have a one hole basin.

So will I be ok if I get a tap that is designed for low pressure? Anyone want to buy a high pressure waterfall tap!!?.

From what has been said, monobloc is a bad option but I am stuck with it I guess.

 

[AWheating]

just get one that works on very low pressures of 0.1 bar plus. try and pipe it up with copper tails, if not use the largest dia flexis you can find and full bore isolators or no isolators at all.

 

[plumber0808]

The water fall taps are not the best when you have the correct pressure, on yours it hasn't got a chance. You have to fit the basic of taps I'm afraid no fancy stuff on tank fed from 1 meter.

 

[AmritPedersen]

Just a thought.... change to combi boiler. Loads more cost!!!! But (if water pressure & flow rates ok) could solve your prob & give you an empty airing cupboard to store stuff in. Never enough storage in flats imo.

Tho this could be regarded as a rather excessive "solution" to an incorrectly spec'd basin tap, I try to take a wider perspective & who knows perhaps the existing boiler is due for replacement anyway?