by Ember

In 2009 I had just published (on Instructables.com) a construction guide for building Gray-B-Gon evapotrons.  Since then, I’ve held five construction workshops in the SF area, and last year evapotrons on the playa consumed 500-1000 gallons of wastewater PER DAY.  I have built a website for evapotrons:  the easy-to-remember URL is  evapotrons.info, which forwards to the real URL,  https://sites.google.com/site/evapotrons/home .  You’ll find pix and words about every practical or intriguing evapotron design I’ve come across; also a dauntingly detailed guide to putting on a workshop in your own locale.  (Don’t be daunted!  It’s not that hard, really; and I’ll help.)

The Gray-B-Gon itself has many minor improvements (colllapsible drum; wheel balancing; belt traction; Clorox info; easier knots etc.)  which are recorded in the Instructables guide and in the same document, freely downloadable, on the website.  This year I will be testing a redesign that I expect to give a 2x performance improvement.  Residential evapotrons don’t need this — they usually run dry already — but I have my eye on the lucrative industrial market:  big camps using giant, inefficient evaporation ponds.  HeeBeeJeeBees tried a GBG last year, saw the effect, and asked for another.  The high-performance model, code name Jumbo, has the same footprint as always.  It just drops into an evap pond and goes to work with three times the evaporative surface area.