Head Mistress and Group: Just moving my Florida boat to San Diego. In FL, my LectraSan was a wonderful convenience. But now in San Diego Bay and certain surrounding waters, I must meet "no discharge" requirements. I would like to mate my LectraSan to a holding tank, preserving the LectraSan option off shore to save holding tank capacity. My LectraSan is installed per Raritan specification, with a vented loop between the unit, and overboard discharge (at the water line...a little stinky with the wrong breeze). I'm looking for comments and criticism. My plan is to install a flexible bladder holding tank, after a Y-valve. That way I can pump the head directly to the bladder, or to LectraSan. Installing a rigid holding tank would require some serious carpentry that I would like to avoid. I would like the bladder to be pump-out capable, and direct overboard discharge capable. Installing a bladder also eliminates the need to install an additional vent for the holding tank, as it collapses or fills passively. Only the vented-loop discharge (already in place) is needed. Comments on reliability, longevity, and permeability of waste bladders are welcome. Can I discharge the bladder through the LectraSan, treating and macerating the waste as it passes. How would I plumb this? Wouldn't it be likely to clog the LectraSan, a unit that is "single flush, single cycle"? Are holding tank chemicals compatible with LectraSan (I bet not)? Alternative is to plumb the holding tank parallel to the LectraSan, Y-valved into the shared overboard discharge vented loop. Flip each Y-valve, and I can switch between either system. In this case, I believe I would have to install a downstream pump/macerator for holding tank waste. But at least this gives me a means of dumping raw waste when over 3 miles offshore, and at a pump-out inshore. I humbly solicit your suggestions. Thanks!