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Outside tap internal DCV

Joined
18 Mar 2018
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Does anyone one use a combined isolation and DCV for an outside tap installation. Instead of and isolation and separate DCV. Thanks
 
A filling loop isolator with the double check valve instead of a isolation valve and a double check valve?
 
I haven't, but I think a filling loop isolator may cause a restriction, that could be detrimental to the flow rate of an outdoor tap.
I personally, have full bore isolators and a 22mm DCV and am very happy with the performance of the tap.
 

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