our pond is 140 ft by 90 ft and 11 ft deep. In east Texas. built an aeration out of 1" pvc and a small continuous run craftsman compressor. It just died, after 2 years of summer/fall use. Want to get a reliable, not too expensive aeration pump and diffusers. Our water is about 6 ft low now, so it is a good time to work. I have been trying to figure out what to buy reading forum posts, but I am confused. I have looked at many pumps (like echo 7) and diffusers. but no one's pond is the size and depth of ours. etexpsych. help please