After several misfires the sw plumbing design is now final and the system is installed. There are two thru hulls, a 3/4 inch aft that is dedicated to engine cooling water and a 1 1/2 inch located in the forward cabin that provides feed water for the water maker, air conditioner heat exchanger and wash down / fire hose service. I installed the 1 1/2 inch manifold because I had originally planned for a system that would flow through a manifold at a volume that would allow all three systems to run simaltaneously. What was I thinking? When would I possibly need to be making potable water while air conditioning the main cabin as I am fighting a fire? Clearly the seacock should have been 3/4 inch not 1 1/2 inch. But it made more sense to install a reducer rather than pull the seacock, reglass the hull and buy another seacock.
The salt water supply flows from the seacock, through a 3/4 inch strainer and then to a 3/4 inch 3 position diverter valve. This diverter valve is below the waterline and supplies the watermaker boost pump and another 3 way valve that provides supply water to wash down pump or the Clima air conditioner. One thru hull, seacock and strainer serves the airconditioner, salt water washdown system and water maker.
There are three wash down hose outlets, one up forward on the bow for anchor wash down duty, one on the port quarter deck and another down below in the head. The outlet in the head serves as a below deck fire water station and a source of flush water in the event there is a problem with the fresh water flush system. The outlets are made by Newfound Metals and are designed so that a hose can be connected or disconnected with the system presuurized.
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