Cruising Sailors Forum Archive

Peggie -- a question about build-up in the head

When we cruise we try to make our holding tank last longer by flushing with less saltwater, and I've gotten a build up of scale in the bottom of the bowl (and of course in the hoses too). Given that white vinegar is bad for rubber parts, what's the maximum time I should allow vinegar to sit in the bowl and pump/hoses?

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