My primary issue with these units is that more and more states are declaring NDZs. For example, much of Rhode Island is a NDZ, has few to no working pump
-out stations, and whenever a big storm hits, the sewers overflow into the bay. Frankly, this sort of hipocrisy makes me ill.
On the other hand, I still vividly remember investigating a bump in the middle of Blue Hill harbor bay (ME). It was the town outfall, with no treatment whatsoever. Toilet paper, feces, and other toilet treats were coming merrily our way.
In an ideal world, we''d just use holding tanks
out from time to time during the next harbor visit. That way, the gunk gets treated properly and the nitrates don''t enter the local water system. In some places like Cape Cod, over-nitriding has caused the sandy bottoms to dissappear altogether. For those who venture for extended periods off the beaten path, a Lectra-San offers the reassurance that 99%+ of whatever "lives" inside you won''t pollute the water around your boat. The nitrates may still be an issue, however.