Originally Posted by Capt.Bill11
Is there raw water running out of either of those hoses continually at any time?
That is not that cheap white corrugated on the inside plastic hose is it?
Good thought. Raw water runs out of one of them (the one closest to the waterline, but still normally not submerged) when the AC pump is running. Having a hard time imagining it running enough to waste a seacock, but it probably can't hurt to leave it bonded. The others are bilge pump hoses and, yes, it's the cheap crap somebody doubtless thought was a good deal.
Replacing it is on my list.