The "Luke" Pump Extensive Information is available on my DIY CD.

So what is the Luke Pump you ask? Well, its a DIY Pond pump named after Luke Frisbee from Florida who discovered it. People with large ponds like Luke and I have been trying to save money on our electrical bills. Large ponds were not affordable, because of the cost in electricity to circulate the water. The recommended turnover rate for a pond is once per hour minimum. Twice per hour is better. In order to get a 1 hour turnover on a 20,000 gallon pond, you would need four 1/4hp Centrifugal pumps. At around 330 watts each, the combined wattage of those pumps would be 1320, using the electrical calculator, those pumps would cost you $91 a month to operate...OUCH. It only takes 1 medium/high pressure pump to make a decent waterfall. The rest of the flow can be returned via jets aka (Tangental Pond Return (TPR). This type of application would be very low pressure 1-3". The perfect pump for this job would be a Propeller Pump or Axial Flow Pump. These pumps basically look just like a trolling motor. A Pump with a propeller on it, like the "Luke" pump. The pump Luke discovered moves 17,000gph and uses less that 200watts. Too good to be true? Judge for yourself, look at the plume of water comming from this pump. I bought one of these pumps and put it through extensive testing. I am now using in on my 8,000 gallon greenhouse pond. Its enough flow to operate four 4" bottom drains, and two 4" standpipe style skimmers. More details available on my DIY CD, including comparison testing, connection photo's, and more.