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Deville September 11th 05 05:53 AM

Reduced flow rate after fitting mixer bath tap
 
Having just replaced separate hot and cold bath taps with a mixer tap,
I'm finding that the flow rate has been reduced, almost as if the
mixer tap wasn't fully opening. Presumably this is a symptom of a
defective tap rather than a "feature"?



John September 11th 05 08:04 AM

"Deville" wrote in message
...
Having just replaced separate hot and cold bath taps with a mixer tap,
I'm finding that the flow rate has been reduced, almost as if the
mixer tap wasn't fully opening. Presumably this is a symptom of a
defective tap rather than a "feature"?


Could be a number of things. Have you used flexis? Their internal bore is
a lot smaller than that of copper pipe and can reduce flow on sytstems where
the pressure isn't very high. It could be that the stopcock and/or
isolators are not turned fully on ( I always turn stopcocks fully on and
then 1/2 a turn back ). It may be a mixer tap designed for high pressure
systems and your system isn't.

HTH

John



Deville September 11th 05 04:26 PM

On Sun, 11 Sep 2005 07:04:19 +0000 (UTC), "John"
wrote:

"Deville" wrote in message
.. .
Having just replaced separate hot and cold bath taps with a mixer tap,
I'm finding that the flow rate has been reduced, almost as if the
mixer tap wasn't fully opening. Presumably this is a symptom of a
defective tap rather than a "feature"?


Could be a number of things. Have you used flexis? Their internal bore is
a lot smaller than that of copper pipe and can reduce flow on sytstems where
the pressure isn't very high.


No, I simply replaced the existing taps with the mixer straight onto
the existing copper pipe.

It could be that the stopcock and/or
isolators are not turned fully on ( I always turn stopcocks fully on and
then 1/2 a turn back ).


I'm pretty sure they're fully open. The inline stopcocks only turn
through 90 degrees.

It may be a mixer tap designed for high pressure
systems and your system isn't.


Ah, I wasn't aware such things existed.
The feed is a combi boiler in conjunction with an electric shower
pump.

Thanks for the input.



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