DIYbanter - View Single Post - Hot Water pressure

alexbartman

Quote:

Originally Posted by Doctor Drivel

"Dave Plowman (News)" through a haze of senile
flatulence wrote in message ...
In article ,
wrote:
The simplest is to fit a Grundfos Booster pump on the hot water line.
This is like a normal CH pump with 1/2" connections and can be fitted
under the sink or at the cylinder.

I recently - like the OP - changed my ancient kitchen mixer to one of
those flash 1/4 turn types. It had the old 'standard' 1/2 inputs so I
assumed it was fine for a low pressure hot water system. And I was wrong.
The previous mixer had ordinary taps and the hot water flow was near the
same as the cold - my mains water pressure isn't high. The new one has cut
it to an annoyingly low flow.

So - are there any modern mixers which work well on low pressure or do I
get a pump?

I'm not sure I want to pump the entire system as my shower works perfectly
as do all other hot taps. So do they make a 15mm version I could just fit
in the kitchen - or use reducers?

You need to rip out the tanks and cylinder and fit a high flowrate combi
ASAP.

It is almost time to replace my ancient boiler - but it will be a very great shame to have to ruin my lovely bathroom(s) to remove pumps etc.......dont suppose there is any way round it though. My previous experiences of a COmbi in my last houe was not great the pressure in the mixer shower was far from great - despite having mains pressure in the bathroom......