I would be very concerned with the pond going down over 1 1/2" every day. That sounds more like a leak than evaporation. As dry as it has been you could have a seep (spring) that is taking in water. As far as the foam, that is probably a concentration of dissolved solids and proteins from the evaporation of so much water from your pond. The local weatherman says the high pressure that has been keeping us from getting any rain should move off to the west. If so we will have better chances for rain over the next few weeks. I have never seen it so dry here. There are mesquite trees loosing leaves and cactus shriveled up on my place. Some live oaks are loosing leaves also. My pond is down 5.5' but is only loosing about 1/2' per day. We must have rain soon or our pond days are over! \:\(


Please no more rain for a month! :|