Using a fitting that can be slid entirely over an end of a pipe would help if it's easy to undo so I wondered if jg speedfit couplers had a plain 15mm bore all of the way through so that they could be undone and slid entirely onto one side of a joint leaving a bit of a gap ...
Slap a push fit stop end on. Find a mop and take a few minutes to think about the problem. It’s amazing how much difference time to think about a problem makes. The actual problem was a mouse had chewed through a push fit connector in the loft. With a brass stopcock (that d...