check valves

rolymo · 30 Dec 2008

Hi all.
I am going to fit a new bath tap one with a shower head combined.
Just need to know if i need to fit a double check valve to both cold and hot supplies.
The cold is mains pressure and the hot supply is gravity fed.
many thanks.

ajstoneservices · 30 Dec 2008

You'll need a double on the cold single on the hot.

seco services · 30 Dec 2008

but you'll probably find the shower will be a pain to get it to a reasonable temp to use being on cold mains and gravity hot.
the cold will over power the hot.

bengasman · 30 Dec 2008

cold mains and hot tank in mixer; that is asking for trouble

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check valves

rolymo

ajstoneservices

seco services

bengasman

DIYnot Local

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