Got some, too stretchy.
Agreed.The pressure on our systems is too high, in a static application ( a pipe that doesn't move, stretch, or get wound on, it would probably work.)
I tried to fix it today by bending the hose to expand the hole and putting glue in as a plug and then wrapping round with tape.This failled.
I've done fix two but not tested it yet, this time i'm using more of a sealant type glue.