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Mixer tap and thermostatic shower

 
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tcvc124224647



Joined: 11 Apr 2008
Posts: 1
Location: leicestershire
PostPosted: Fri Apr 11, 2008 6:59 pm    Post subject: Mixer tap and thermostatic shower Reply with quote
Hi.
I have fitted a new bathroom, not for the first time but have a problem on this one. The cold water is getting into the hot water pipe. We did not have a shower in this room before and the bath taps were seperate. The basin which is mixer taps works fine but now the water is turned on to the bath and shower we have the problem being when both isolation valves are open the hot pipe goes cold. Also when the taps are turned off and valves left open there is a continual flow from the overflow from a tank in the attic. It seems as though the cold pressure is forcing the hot back through the pipe.
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thescruff
Moderator


Joined: 03 May 2003
Posts: 4632
Location: Bath
PostPosted: Fri Apr 11, 2008 8:41 pm    Post subject: Reply with quote
Cheap taps Laughing

Water regs say there should be single check valves fitted to prevent backflow
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