The only ones I've encountered on other peoples stuff tend to reduce the
flow in the main pipe and if a main supply drench the fitter during the
tightening up grin. Advice, do it on a warm summers day and put something
waterproof over anything damageable. Of course it could have been the
plumber at fault, not the tap...

Brian

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"Adam Funk" wrote in message
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On 2020-10-29, Andy Burns wrote:

Roland Perry wrote:

Struggling to find the keywords to guide me to buy online those plumbing
gadgets which clamp on the outside of, and pierce through, existing
pipework to attach a dishwasher feed or something similar.

https://www.wickes.co.uk/Self-Cutting-Washing-Machine-Tap/p/420510

How well do those work? Tqhey always struck me as risking a bad seal
or loose bits of pipe inside the pipe.