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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #21  
Old 01-24-2009
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Quote:
Originally Posted by blueskyonmars View Post
i know i may get flack for telling you this but i use a home unit in my boat. My wife and i have been out for three months at a time and we only hold 80 gallons of water. the home unite works fine and we have never gotten sick from useing it. I still make sure to not depend on it fully and regulate our water use big time. We have gone 6 weeks with out a fresh water shower but hay that crusing. any way here is the link to what i use. its only 300 $

freedrinkingwater.com
I take it you are talking about filtering you tank water and not sea water. I canot see that system supplimenting you water supply when at sea.
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  #22  
Old 01-24-2009
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no we have pumped sea water right threw it. we use the water for showers but i have drank a bit from time to time and i cant taste salt at all.
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  #23  
Old 01-24-2009
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How did you pump the water through? Did you set up a separate high pressure pump from your sea water intake?
What pump was this? How much amperage did it use?
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Old 01-24-2009
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we are using a manual well pump we only get up to100 psi on the sea water feed side . That manages to push it threw.
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Manual? At 1.5 GPH??? Do you pump continously for 4 hours per day?

Did you look into what a 12 volt pump could do with this system?
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Old 01-24-2009
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100 psi with a manual water pump sounds like something that would keep you in pretty good shape aerobically and physically. We had a little "whale" foot pump on one of our boats that moved quite a bit of water, but I don't think it got over 10 psi, best estimate.
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  #27  
Old 01-25-2009
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I suppose i am in pretty good shape , we use no motor on our dink, no windlass for the anchors 90 lb fisherman and a 60 lb cqr, and we have no winches for our main or for sail. But like i said it there to make shower water mostly and we didn't pump for four hours a day, Just a bit when ever as most of you know when you out you have plenty of time for everything. But that system does work for salt water. We like many i am sure don't have an extra 4 grand laying around to throw at a secondary water system. The well pump all tho a bit large really is not difficult to pump my wifes 27 and she has no trouble pushing and pulling.
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Not even a manual winch for a 90 lb anchor?
You boat must be fairly large to require that big an anchor and you don't have any winches for any of the sails?

Even if the pumping by the well pump is easy, the system only produces 1.5 gallons per hour. You say you use it for showers. If you want 2 or 3 gallons of water for a shower you need to pump continiously for 2 hours. This isn't a matter of strength but of time. Dedicating 2 hours to pump out enough water seems like a stretch.
Please elaborate. How long do you pump to generate 2 gallons of water?
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Old 01-25-2009
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Quote:
Originally Posted by blueskyonmars View Post
I suppose i am in pretty good shape , we use no motor on our dink, no windlass for the anchors 90 lb fisherman and a 60 lb cqr, and we have no winches for our main or for sail. But like i said it there to make shower water mostly and we didn't pump for four hours a day, Just a bit when ever as most of you know when you out you have plenty of time for everything. But that system does work for salt water. We like many i am sure don't have an extra 4 grand laying around to throw at a secondary water system. The well pump all tho a bit large really is not difficult to pump my wifes 27 and she has no trouble pushing and pulling.
The community could benefit greatly here if you could explain your setup in a little more detail. Got any pictures? What model or make is your well pump? Are there pickling procedures that you have to follow for your R/O filter?
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  #30  
Old 01-26-2009
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I sent an inquiry to APEC, the maker of the watermaker being discussed here. This is their response:

Thank you for your interest with APEC Water Systems.
Our systems are designed for Fresh Water use. Our membrane will not be able to filter out Salt water. RO systems can treat up to 2000 TDS (total dissolved solids). Salt water has a TDS of about 15,000 tds, so it will clog up the filters and membrane right away.
You will need to use a Salt Water System
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