Still some bugs I need to work out, I suppose. I could run a watering pump and keep the speed regulated with a couple of 3TF7's Tom On Jan 5, 2006, at 3:50 PM, Flowertime01 at wmconnect.com wrote: > Tom, > > How are you going to keep the water level constant under the sail > boat? > Won't it evaporate? > > Roger AI4NI