Never had an issue with Plumber's Mait
Just to clarify the plumbers mate is this
https://www.google.com/search?q=plu...msung-gs-rev1&sourceid=chrome-mobile&ie=UTF-8
No PTFE needed as it’s the rubber in the flexi that creates the seal.Thanks a lot guys also another question do I need to use PTFE tape when I connect the the flexi pipe from the tap to A cut off Vale 15mm or quarter inch .
I think they are flat faced the shut off valve hut not sure .
Then i have 15mm copper running from the isolation valve .
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