Discuss What is this valve on cold feed in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
Check valve - there is a differenceIt is fitted on the cold drinking water pipe, is it a NRV or single check valve? and is there a difference in the two kinds thank you once again.
Reply to What is this valve on cold feed in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
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