Quote:
Originally Posted by osprey877
One final question. One of my possible water sources is the seacock in the forward head. It currently supplies saltwater to the head. I would tap into the hose that runs from the seacock to the water inlet on the Jabsco heads (ie the toilet fixture) pump with a Tee connection to the deckwash pump. Do I need to worry that instead of sucking saltwater from the seacock, the deckwash pump could suck water out of the head, or suck air if the head is dry? Will the seal in the head pump be damaged by any back pressure created by the deckwash pump? Thanks
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We have that same arrangement on our
boat and have not had any difficulties. In our case the
raw water feed line to the head/anchor wash down is T'd--one side to the head/one to the
anchor wash--just following the
raw water strainer which is, itself, just after the ball-valve on the through-hull, below the water line (of course). Our wash-down pump is a Jabsco "Water Puppy" located under the lavatory counter and controlled by a toggle switch in the
anchor locker. In theory one does not need a positive shutoff of the wash-down hose line but we have and use one at the end of the hose, on
deck, just before the spray nozzle, to ensure that no air can be drawn into the line when the head is pumped. The arrangement works well (and gives one a distinct advantage in water fights with the kids!).
FWIW...