A better solution would be to tee off the head intake to the head sink drain seacock. This way you can have a dedicated seacock for the AC water inlet.
And as a bonus, you will be able to close off the head seacock when you leave, run fresh water in the sink, and flush the fresh water through the head inlet line. This will eliminate much of any head stink (which many folks think is due to the holding tank, but is in fact seawater anaerobic decay). In any event, use a big strainer with a good basket. I use a Groco ARG-750 with a Monel basket (Monel metal is better than Stainless 316 for fast flowing water, but it costs more). I got my strainer from Flagship Marine when I purchased their FM16R 16,500 BTU AC unit. I liked the Groco strainer so much that I replace my engine strainer with the same unit and also purchased it from Flagship Marine as they had the best price(~$100). link to my blog on removing seawater stink via the head tee off: http://svjohannarose.blogspot.com/2018/08/getting-fresh-water-into-head.html <http://svjohannarose.blogspot.com/2018/08/getting-fresh-water-into-head.html> link to my blog on AC installation: http://svjohannarose.blogspot.com/search/label/AirConWork <http://svjohannarose.blogspot.com/search/label/AirConWork> - Paul E. 1981 C&C Landfall 38 S/V Johanna Rose Fort Walton Beach, FL http://svjohannarose.blogspot.com/ > On Sep 19, 2019, at 10:22 AM, [email protected] wrote: > > Date: Thu, 19 Sep 2019 09:57:44 -0400 > From: Edd Schillay <[email protected] <mailto:[email protected]>> > To: Edd Schillay via CnC-List <[email protected] > <mailto:[email protected]>> > Subject: Stus-List Air Conditioning Installation Questions -- Raw > Water Supply > Message-ID: <[email protected] > <mailto:[email protected]>> > Content-Type: text/plain; charset="utf-8" > > Listers, > > Yesterday, I met with an AC installer on the Enterprise to cool off the main > and aft cabin, as well as fight off mold and mildew (as I understand it, the > expectation of growth of mold and mildew in this area is far more reliable > than, say, David Risch actually attending a C&C Rendezvous). > > The plan is to sacrifice some of the aft-cabin hanging locker. > > Until I haul the boat again, which I don?t plan to do for another four years > or so, I don?t have a dedicated through-hull. I?ve heard it?s not a good idea > to tee off of the engine intake, but there is the galley sink drain nearby. > Any issues with tee-ing off of that one? Obviously, I?d need to refrain from > dumping chemicals into the sink while the AC is running so as those chemicals > don?t go through the AC. Anyone know of any issues with that plan? > > Also, I?m a little perplexed as to why tee-ing off the engine intake is so > bad. The AC is 110V AC-powered, so it?s not like I?m going to have the engine > running and the AC going at the same time? Or can I with my 2000-Watt > inverter and high-capacity alternator? > > All the best, > > Edd > > > Edd M. Schillay > Captain of the Starship Enterprise > C&C 37+ | Sail No: NCC-1701-B > Venice Yacht Club | Venice, FL > > Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/ > <http://enterpriseb.blogspot.com/>> >
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