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...”