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Old 31-01-2009, 18:18   #31
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I came across a tow behind one that is powered by your movement through the water instead of electric power and produces about 25 gal/day. Just a bit over 2K. I have no personal experience with it.
Reverse osmosis portable towed yacht watermakers
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Old 31-01-2009, 18:32   #32
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Now there's a clever piece of kit!
Good link cheers!
Some one posted an article on building your own in the photo gallery that I saw yesterday for about the same price...
Both out of my price range... but interesting none the less...
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Old 31-01-2009, 19:19   #33
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I was not trying to beat you down. I have an inquiring mind and like to figure things out my self. It is great and often easier to improve ideas. But there has been a lot of research in RO and if some one figures out a cheep solution to this they will sell a million of them. But for now its pressure and power. The tow behind only works when making way or if you have a heck of a current at anchor
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Old 31-01-2009, 19:33   #34
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Fair enough, no worries... Definitely power is a key issue here because of the size of the filters... But a 160GPD only uses 4amps... in this age of miniaturization it must be possible...
I think a major issue here is that people who need smaller machines don't have as much money to spend so aren't as lucrative a market to manufactures/designers.

Who knows... maybe someones already invented or is inventing one....
I shall certainly keep my eyes peeled...
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Old 31-01-2009, 19:38   #35
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And of course the towed one begs to be converted for use with a free-wheeling prop I'd say....
Some kind of gearing perhaps...
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Old 31-01-2009, 19:55   #36
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In addition to not working at anchor, two concerns I'd have with the tow-behind:

1. Shallow water sailing (I like the Bahamas)

2. Not using it for prolonged periods when you are at anchor - I hear non use is often the cause of filter failure.

Still, an interesting innovation I think.

Is using the surface of your boat boat or sails to collect rain water a more cost-effective option for you? I know this isn't as reliable as a watermaker, but it's sure cheaper. It's one reason I've thought of making a hard bimini top some day.
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Old 31-01-2009, 20:10   #37
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Yea, thats certainly a better option for me, though I've also toyed with the idea of using an evaporation stil, either solar or if i can spare the space maybe in a stowage locker using a sea-water aquarium heater to speed things up...
I'm favouring the second option as it should be less hassle once its set up... if i can spare the power that is...
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Old 31-01-2009, 20:14   #38
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Aquarium Fish tank Heaters & Thermostats
A 25w heater would heat 5gal to 32c
I should experiment before I try build it tho to see if the amount of water it can produce is worth the power...
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Old 31-01-2009, 20:20   #39
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Though for people that heat water with the excess power from wind turbines this could be very effective...
But I'd assume that salt water would be very corrosive to the elements, but possibly there's a way around that problem...
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Old 31-01-2009, 20:37   #40
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Anyone interested in this thread should also check out this one too - DIY Watermaker
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Old 31-01-2009, 20:55   #41
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I think a thread on Capt Jazz might make great reading - sorry could not help myself - are you English by any chance?
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Old 31-01-2009, 21:07   #42
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Yes mate... kinda...lol
Raised for 9 years in South Africa and my Dad's french, married a Dutch girl and lived in Holland and Spain with her for a few years... So from all over really, even though I was born here...
Fear not though! I shall be keeping people upto date with my adventures!
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Old 31-01-2009, 22:15   #43
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Heaven help us I should have realised you would take it as an invitation.
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Old 31-01-2009, 22:17   #44
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Haha... at this time in the morning I'm halfway through a bottle of rum and will quite happily ramble on about anything!
But then there's nothing worse than a landlocked sailor... especially when he still has over 2 months to kill till he can get his boat...
:P
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Old 31-01-2009, 22:53   #45
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And where I'm from is a complicated question...
Count yourself lucky! Thats probably the shortest answer I've ever given...
:P
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