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This schematic shows the basic components of a reverse-osmosis watermaker. In practice, the devices may be much more complex. Some models, for example, use the pressure of the exiting brine to assist the high-pressure pump, thus conserving energy.

Pressing pure water out of the sea Issue 77 : Mar/Apr 2011 Osmosis is a natural process in which molecules of a liquid spontaneously pass through a semi-permeable membrane. The direction of fl ow acro...

Jerry prods his jug bucket to perform in front of the camera.

Thinking beyond the pail Issue 78 : May/Jun 2011 Aboard Mystic the “ship’s bucket” is an important piece of gear. When it’s inactive, it holds the vacuum cleaner and is buried deep in the port cockpit...

On Rathbun Lake in southern Iowa, Swede and Marcia Samuelson’s Drifter, a 1973 Ranger 33, shows off the paint job that earned her the nickname Lady Red.

A quick and accommodating Gary Mull design Issue 78 : May/Jun 2011 When David “Swede” and Marcia Samuelson sold their San Juan 28 in 1987, they left 14 years of sailing behind and began traveling on m...