On May 31, 6:41*pm, bpuharic wrote:
OK basic question: boat has a porta potty (actually more than a PP;
it's hard installed in the boat). *no holding tank apart from the 3
gallon tank on the potty. *it has a drain port for connecting to god
knows where. *it was connected to a line allowing direct dumping to
the sea....but, since i don't like my buddies on the gold side of the
USCG busting me, i disconnected it.

question: can i hook a sanitary line directly from the output of the
potty to the pump out connection, and pump out the potty's holding
tank? *

will a pump out damage the potty, or, god forbid, blow its contents
all over the *head? *a buddy of mine did that once on his boat...got
the valving wrong and coated his head. NOT a pleasant thought....

thanks everyone (and where's peggy when you need her?)

I'm guessing a one way valve would prevent a backlash. You should be
able to adapt it for pump out. It'll take some dismantling, and
rigging the piping, as well as drilling the deck to accept the plug.