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taps and double check valves (Read 4174 times)
wozzy
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taps and double check valves
Nov 7th, 2016, 9:31am
 
been doing a little bit of replacing sink and taps at home just want to make sure im doing it right.  

When installing a mixer taps do you need a double check valve? Ive read the instructions and theres no mention of it just to comply with local water regulations ect.  

Ive done some googling and there is plenty of threads about it but they are all from years ago and it seems there was no definitive answers.  

Thanks.
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thescruff
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Re: taps and double check valves
Reply #1 - Nov 7th, 2016, 12:17pm
 
Yes you do, unless they are inbuilt or the water mixes in the spout and not the body.

Rough guide better quality usually comply with the regs

If hot and cold come from the same storage take you can get away with it, high pressure cold v low pressure hot as above
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wozzy
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Re: taps and double check valves
Reply #2 - Nov 7th, 2016, 1:47pm
 
ok I have a combi so does that make it easier?

Will look through the instructions to see if it says about the spout or the body.  

Thanks
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thescruff
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Re: taps and double check valves
Reply #3 - Nov 7th, 2016, 10:29pm
 
Just as well to stick a singles check valve on them they are as cheap as chips anyway.
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londonman
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Re: taps and double check valves
Reply #4 - Nov 8th, 2016, 7:45am
 
Presumably if you have your own water supply then all this check-valve stuff is irrelevant - from a regs perspective ?
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thescruff
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Re: taps and double check valves
Reply #5 - Nov 8th, 2016, 9:34am
 
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londonman
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Re: taps and double check valves
Reply #6 - Nov 8th, 2016, 5:24pm
 
Good links, thanks.  The answer is 'No'  - you don't have to worry about check valves etc.
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