Hello list:
I have recently found out that my gray water tank on my Adventurewagen has a
leak.
The tank is cracked where the dump outlet connects the tank.  Originally,
this looks like the two were molded together in one piece and not welded
together later.
Though the tank is painted black, a cross sectional view of the damaged area
looks an awful lot like polyethylene.  It feels like it too.
My limited experience with this material is that general purpose plastic glue
does not really work on it.  I might consider welding it with a p-tex stick
from my ski tuning drawer, but that seems kind of shaky, too.
Anyone out there with experience with repairing / welding polyethylene?
DAR