The fixed toilet on my recently acquired 1980 Hunter 36 will need a valve/diaphram clean out or repair to make it operational again. And the marine surveyor who performed the pre-purchase inspection recommended some modifications to the hose and vent routings. I am using the boat for day sailing, generally less than 4-5 hours, and generally with only 1-3 other people besides myself. An over-nighter would be the upside duration of a trip. Can people give opinions whether a porta-potti might be the better option than repairing/upgrading the fixed system for this type of usage? I am new to larger boats, so do not have experience with either system. So please excuse my uncertaintly with the question. But it seems to me that if a toilet is actually used on an outing (assuming maybe on 25% of outings), it would seem to be simpler and cleaner just to take a porta potti waste tank ashore for disposal, than it would be to use a fixed system with a holding tank that remains partially filled (and fermenting?)for weeks or months between pump-outs.For those opining towards the porta-potti option, what features would be desired? Thanks.