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Old 04-06-2006, 05:54   #1
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Location: Mexico, but fishing in international waters
Boat: A chinese fishing boat
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NEED Advise

Hello...

I'm new here .

1.-
I need advice to buy a 300 gallons daily WATERMAKER.
Where to buy ?
and
What is the best and cheaper equipement ?


2.-
I need also a radio to comunicate over 3000 miles.
What is the best and cheaper equipement ?

Thanks you very much...
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Old 04-06-2006, 06:25   #2
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Welcome to cruisersforum, Hector.

You could have started off your question, like this. Like what general part of the world you're located at? Cause that could be a big factor on buying and possibly shipping the watermaker and the radio to where you're at?
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Old 04-06-2006, 06:31   #3
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Hector:
Do you want to make 300 Gal of fresh water over a 24 hour period (12.5 Gal./Hr.), or in some other shorter period?

Single Side Band (SSB) range is generally reliable to a 150 mile maximum (2-3mHz MF band) , though HF band can sometimes reach thousands of miles. I suspect you’ll have to use Short Wave (amateur, or HAM) radio, or satellite telephony for 3000 mi. communication range.
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Old 04-06-2006, 06:40   #4
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Location: Mexico, but fishing in international waters
Boat: A chinese fishing boat
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Thanks you for your answer.

I need about 300 Gal daily... each day...

About radio... Yes, I think I need a HAM... but I´m absolutly new in this job... and I dont know avsolutly nothing !!! Is because this is my first approach...
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Old 04-06-2006, 07:46   #5
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Hector, what you want may or may not be possible.

Are you fitting out a cruise liner? Harbor tug? 36' sailboat? For commercial use? Private use? Radio for occassional safety? Business use? High amount of traffic?

Give us all some details, you'll get better answers.
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Old 04-06-2006, 10:06   #6
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Hector - If you click on the word PROFILE at the top right of this page, you can fill out some information about yourself that will help others refine their answers to your questions. In addition, there are sections already started on HAM radio:
http://www.cruisersforum.com/forums/...splay.php?f=13

and watermakers: http://www.cruisersforum.com/forums/...splay.php?f=44

You may want to read through those. Good luck!
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Old 05-06-2006, 03:53   #7
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A brief overview of Watermakers:
http://seagrant.uaf.edu/bookstore/bo...ermakersII.pdf

R/O Watermaker Manufacturers:

http://www.tecnicomar.it/bicompact_ita.htm (Spanish)
http://www.spectrawatermakers.com/
http://www.searecovery.com/
http://www.watermakers.com/
http://www.hrosystems.com/
http://www.villagemarine.com/
http://www.filtrationconcepts.com/

Most R/O Membranes in the marine market are manufactured by Filmtec* http://www.dow.com/liquidseps/index.htm
, a subsidiary of Dow Chemical. Membranes are designed to work at a certain flow rate and pressure. Significant deviations from these design parameters will result in lower-quality product water (higher levels of dissolved solids) and shortened membrane life (increased fouling). A higher-rated membrane, operated less (or at lower pressure) will last longer.
* http://www.dow.com/liquidseps/prod/prd_film.htm
Filmtec membrane #SW30-2521 is rated 200 GPD, and the #SW30-2540 is rated 540 GPD.

FYI: Excerpted from a PM from Hector:
”...I have a fishing ship and it needs a watermaker and a communications equipemente.
Effectively, the water needs daily are aprox 300 Gal
And the fishing area is about 3000 miles from the port, in Costa Rica...”
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