Hi again. New to us 36mk ii. I was working on a leak of the cap in one of the fresh water tanks and found this white, greasy, odor free substance to be all in the tank. I've since cleaned the tank w Dawn soap and fresh water and it's still there. It's almost like a petroleum jelly but thinner. Not water soluble and you have to wipe it off your fingers. I haven't checked the other tanks. Any thoughts on what it may be and how to clean it? Thank you.
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"Nauti Seahorse"
2001 C36 MK ii. #2011
That might be white mold. I get it in my hot tub once in a while. If so, dawn dish soap won't touch it. I always put a splash of bleach in my tanks while filling. I don't drink the water but you can still brush your teeth with the bleach added. Anyway, if that is white mold your going to have to hit it hard with bleach.