In article , OldScrawn
writes
What's wrong with wrapping a lot of self welding PVC tape round said
pipe?....

It won't stick to the pipe. The crucial thing is, is this an incoming water
main (i.e. under pressure), or under modest pressure like a supply from a
header tank, or a waste pipe which doesn't see water much of the time, and not
much pressure. That gooey tape used for bodging leaking roofs will do the last
one. Indeed ordinary PVC tape may work, if you clean and dry the surfaces and
can wrap it round several times under tension. The "plumbers" epoxy stick that
you knead to mix will do the others, but it's best if you can get the lead
reasonably clean, and take off the pressure to do the repair.

Oh well, the one I did some years ago is still there
--
Tony Sayer