Pond aerator [RE-wrenches]

[Robert Warren]

Daryl,
  Sorry if this message is a bit after the fact, but I was off line for 
a couple weeks.
 I installed a pond aerator a few years back for a customer who had a 
private lake near Aspen, CO.  It worked real well and didn't cost too 
much. I went out there in the winter time after a hard freeze and heavy 
snowfall,  and it kept a 20 ft. diameter hole in the ice.    
 I didn't use a battery, I just hooked 2 x 100w PV modules in series to 
run a 24 VDC air pump that I found in Graingers, and built my own 
aerator device out of a 5 gallon plastic bucket half filled with 
concrete and lots of holes drilled in the lid and sides. 
  Thermocline traps warm water at the bottom of the lake, but the air 
bubbles in the daytime would melt the ice pretty good. There seemed to 
be enough oxygen for the fish, too. The only problem I had was that the 
2nd winter, the beavers chewed through my 1/2" poly pipe and so instead 
of little bubbles, I had big ones. So the following summer, I re-routed 
the poly tubing inside armoured flex conduit.
As for the PV modules, I pole mounted them at 80 degrees whihch kept 
them free of snow and got lots of extra sun due to the snow reflectance. 

Robert Warren




What will we do if there is another fuel shortage? 
Did you know that there is a pollution free, completely
renewable fuel which you can use right now in your own car? 
Don't replace the engine, replace the fuel.
Check out my website on making your own fuel: 
http://running_on_alcohol.tripod.com 
robertwarren at mail.com

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