Then he should just pull the line off the thru hull fitting and give it a
blow!!! If the line is open, the clog is in the thru hull. If not, it's
fishin' time.

I'd recommend using a set of unsuspecting lips or an air hose.


"Clams Canino" wrote in message
news:wFtab.510144$Ho3.85480@sccrnsc03...
He doesn't know. All he knows is that he has pressure. I'd say he outta
try a small snake from the vent outlet toward the tank.

-W (getting good at deciphering "end user speak" )

"jps" wrote in message
...
Which end is clogged?

"JML" wrote in message
...
Does anybody here have a quick and easy way of unclogging the vent to
a
waste tank? I suspect that there is a clog because as soon as I open
up
the
pumpout even after minimal use, gas escapes as if the tank was under
great
pressure.