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Old 04-29-2013
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Re: Back for more - portapotty vs. manual head

Your current set-up is something of a disaster. Chances are that the hose from the toilet to the holding tank will almost always have waste in it, and that waste will be anaerobic no matter what you do. In other words, you've got yourself a little sulfide factory on your boat (sulfide what makes heads/tanks/hoses/poop/etc stink, for the most part). I would move the tank closer to the toilet and plumb it so that the high point of the hose is as close to the toilet as possible, and it enters the tank on the top. That way everything after the high point should drain, keeping the hose as aerobic as possible.

The tank itself should have two vents, preferably terminating on opposite sides of the boat, to facilitate flow-through ventilation of the tank. That, and not letting the tank sit with any waste in it any longer than you have to, will (hopefully) keep the tank as aerobic as possible. Also, if at all possible, plumb the tank with all the fittings on the top. That way none of the tank fittings will have liquid pushing against them 24/7. Finally, six gallons is pretty damned small. I would try to find room for a 10-12 gallon tank, if at all possible. That should give you enough capacity for two or three people for a week-end. Check out Ronco's website; they have all sorts of shapes and sizes of tanks for boats.
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Last edited by SlowButSteady; 04-29-2013 at 12:51 AM.
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