My 24 Sea Sport XL has a cavernous fish hold, that drains through a macerator pump. This thing has some funky, and I mean super funky smell going on. Smells like year-old death. But here is the strange thing, it only stinks when the boat is on the water. Sitting on the trailer at the house it has a faint smell, but put the girl in the ocean and mother-of-god does she reek. A couple months ago it started, and I ran an entire bottle of bleach through the pump. Worked for a couple days. Next, I went to Granger and bought the most concentrated bio cleaner they had for removal of odor. $100 for a jug! Filled up the hold with water, put the super stuff in and let it sit for 2 days, occasionally pumping some out so that it was through the entire system. That worked for a couple weeks. Well the skunk is back.
I'm thinking I have something stuck in the macerator that's causing it, and next step is to take it apart and clean, and perhaps change the hoses. Just cant figure why the smell intensifies so much as she's floating. Thoughts?