Many think evap ponds just plain suck. If it's not neighbors dumping their dishwater in it, then it's two days of overcast. And sucking up that mess at the end is obviously a failure when you can see hundreds of "dumps" from evap ponds late Monday afternoon...
Spend a lot of time making something that works, or just take all greywater back home (which is my system.) Heck, you bring the water out, you already have the containers!
A collection device can take less time (and money) to prepare than some very creative wind or power driven device that evaporates water.
For all pics of these devices, go to:
http://picasaweb.google.com/DoctorIKnow ... onBuckets#
But here are the highlights of a containment system that also keeps the feet from touching playa mud in the bottom of a kiddie pool:
Of course, a 2.75" or 3" hole (?) is drilled in both the plywood and the kiddie pool....
In the above pic, be sure to make each progressive intake hole in the 5 gallon buckets be about 1.5" lower than the previous bucket outlet. All buckets fed from one bucket. The first bucket will hold almost 5 gallons, the last bucket about 3, and then you can save time empty them all at once into your containers when the last bucket is full.
And, for that nasty dish washing water, filter it thru a layer of burlap (NOT anything more sheer) put in a touch of bleach, and take it home. Dry the burlap with the encrusted glarm in the sun and it is ready for the garbage. Bring about 5 pieces of burlap. Cut the top off a 5 gallon bucket to hold the burlap in place.
For both systems, it's helpful to have a BIG funnel.
And if you want a major investment (but a funnel works great):