It's about time we talk about poo. We took a little weekend trip to the Edmonds Marina in Edmonds, Washington. Normally, back at our home marina, we pay to have a company come by weekly to pump out our holding tank. For anyone new to boat living, here's how it goes with our system (there are others out there) - we stick to number 1s in our onboard Jabsco toilet. When you flush (manually) you pump a little sea water in from outside, it fills the bowl, then goes from the head back to the holding tank. On the outside back of our boat is a little cap, access to the same tank, you unscrew it, and pump away!
P.S. Our holding tank is about 24 gallons, it lasts a week at the marina with the both of us using it (but we are at work all day 5 of the days). Pumping out at the marina docks is free (here anyway).
-Paul, Amber, Ann, Jon ETC