{"id":1162,"date":"1999-11-30T00:00:00","date_gmt":"1999-11-30T05:00:00","guid":{"rendered":"https:\/\/setsail.com\/?p=1162"},"modified":"2015-10-16T12:09:28","modified_gmt":"2015-10-16T17:09:28","slug":"watermakers","status":"publish","type":"post","link":"https:\/\/setsail.com\/watermakers\/","title":{"rendered":"Watermakers"},"content":{"rendered":"
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We are in the process of purchasing an LRC trawler and are wondering about the advisability of including a watermaking system. We don’t know which is preferable, reverse osmosis or evaporator. Any thoughts on types, preferred brands, tradeoffs, etc? Any help would be hugely appreciated. Thanks, Tom C. and Bob S. <\/p>\n<\/div>\n

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Hi Bob and Tom: This is a big subject with a lot of angles. First, wait until you are ready to go cruising for the watermaker–if you get one at all. They are not happy sitting around and prefer to be worked. <\/p>\n

This subject is covered on our Offshore Cruising Encyclopedia–but in general, it has been years since many folks used evaporators for distillation. The modern systems–if you get the simple ones–are highly productive, relatively cost efficient, with many options for power (as opposed to just using waste heat as with an evaporator).<\/p>\n

Several keys: Get more rather than less capacity as the unit will run less and the cost differential as you go up on size is usually not proportional. Make sure the membranes are installed where it is relatively cool. Keep all plumbing fittings, valves, gauges, and pumps where they are easily accessible. The watermaker will be the highest maintenance gear on board. Use a built-in system for fresh water flush and cleaning\/pickling. Good Luck, Steve <\/p>\n

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