Re: What is so bad about a Porta Potti?
Personally, I find the Pett bag system better than pp's. Works well for #2 also.
The dumping and cleaning of pp's are disgusting IMHO. True, if #1 it's not so bad but I like to just walk down the pier and drop the bag in the closest trash can/dumpster.
Since there are very few pump outs in these parts and most trailer sailers find it hard to install a real toilet... we find the bag system the best alternative.