Hi, thanks for the forum. I have two wells, one modern 4' pvc cased 40' deep, the other an old hand dug well also about 40' deep. Just down hill from these wells I have a small (less than 1/4 acre)pond. I need a pump that will pump a small amount of water 24hrs per day. My problem is I do not want to pay the electricity to run a 1/2 or larger pump and I do not need that amount of water. Is there a pump that can lift water 40' and still not cost me a small fortune in electricity. At this point I don't care if it's submersible or above ground. All help is appreciated. Thanks Bob