Quote:
Originally Posted by boatpoker
Vents should be connected to throughulls well above the waterline, as close to the sheer as possible.
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You may be right and I don't know if there are any specs that agree or disagree with your comment but...
I would never run my freshwater tank vents topside because saltwater or harbor water contamination may result. My vents are all loops of hose that run from the tank to very high under the
deck then back down toward the
bilge...ending well short of the bilge to allow drainage to it but prevent contamination if the bilge is full and the
boat is heeled or suffers a knockdown.
Fresh water in the bilge hurts nothing. Harbor water or
salt water in the tank can hurt your tummy.