Join Date: Mar 2011
Location: Henderson, NV
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Re: Switching from marine head to porta potty
I did exactly what you are proposing on my Cal 2-30. In my case, however, the holding bladder and hoses were well used. Also, the boat was hauled out when I bought her, so the first thing I did was remove the two through hulls (drainage, intake) and glass over the holes. Once on the water I proceeded to removing the rest. I won't lie- it was a smelly, disgusting mess that took some doing for one person. The hose to the bladder ran under the V-berth to the port side vanity where the bladder was mounted to the port wall. There was a pump out deck plate above (still there) and a vent above that (also still there) that I removed the hoses from and cleaned thoroughly. The deck plate remains sealed and the vent is now, well, a vent. I made a mess in the cabin when pulling the drain hose out, but my boat is pretty sparse in decor, so I hosed her down pretty good. I put in a Thetford on a home made stand and haven't regretted it. The moment I got rid of all that, my boat smelled different in a good way. Resale value may take a hit, but this is not an investment and in Southern California there are places that frown upon boats with heads that drain into the ocean.
As an aside, I rarely use the head. As a single hander, I have the old 'milk bottle with a line attached' in the laz and a bucket if I should ever need to go #2 (which hasn't happened yet). I use the marina toilet, which is about 100 yards from my slip.
If you have to do it in the water, just close the through hull, remove hoses and carry on until you do haul out.
1968 Cal 2-30