Per Larry C:
replace gaskets (a job you can do yourself if you
have the time) ,

There's definitely some technique in replacing gaskets. Part of it is cutting
the adhesive with an accelerator called Kotol.

I once did the neck and arm seals on one of my old Bare dry suits in less than
45 minutes - using a bunch of magnets and the hood of my car with the neck seal
and squatting on a deck using a couple of ricotta cheese containers to do the
wrist seals.
--
PeteCresswell