Gdavid
Guru
Interesting you should mention this. Pinellas County Florida (St Pete, Clearwater, etc.) bans sale of fertilizer during the summer rainy months.
Back to topic, I don't have a dog in this fight as I went compost head. But I applaud the general sentiment of the participants to this thread as it sounds like most try hard to be responsible. But my back-of-napkin math of ratio of boats with a dozen beer drinking passengers on the ICW compared to traffic af pump-out stations adjusted for boats headed out an inlet to the Gulf, I'd say responsible pump out users are in the minority, likely a tiny minority. Frankly, I doubt the barrier is a fee. More likely just not convenient compared to flipping a switch.
Peter
I share your suspicion, from my casual observation, the traffic in and out of any given harbor far exceeds the traffic at pump out stations and pump out boat patronage.
I have been a guest on a number of private vessels where the head is not used at all through implicit or explicit direction (signs saying do not use, locked head doors or just the established presence that guys pee overboard and ladies hold it). It is kind of off-putting and not they way I run my boat, I want my guest to be comfortable and holding your bladder or feeling awkward for "breaking the seal" on the head is not comfortable for anyone.