From: jrojas@tech-man.com   
      
   j wrote:   
   >    
   >>   
   >> You wanna nit-pick.  OK, bring it.   
   >> We have a vaguely described setup.   
   >> We have vaguely described numbers from the utility bill.   
   >> The "experiment" is undocumented and uncontrolled.   
   >>   
   >> And the result is that it transcends conservation of energy.   
   >   
   > I'm inclined to take this at face value.   
   >   
   > So what do you know about pumps? I know a little, enough to know that a   
   > water pump with no load draws almost as power as one that is loaded.   
   > I've measured my pond pumps and that is what mine do.   
   >   
   > Water pumps are rated in flow and in head. It is the ability to deliver   
   > head (ie pressure) that requires high power draw at even low demand.   
   > Conversely, low head pumps draw little power.   
   >   
   > So what we apparently have is a sand filter that could require quite a   
   > bit of head pressure, hence a lot of power draw and an oversized pump.   
   > Whatever excess head is not needed would normally be wasted. What the OP   
   > has done is recover much of that. In an elaborate method that requires   
   > daily tweaking, but it does work.   
   >   
   > Now, I could argue that lower head pumps could have been used (with   
   > their own series of tweaks), but doubtless there would be times they   
   > would not work (sand filter clogging). I think the OP has optimized his   
   > filter pumping in a convoluted way, but it does not void the laws of   
   > physics.   
   >   
   >    Jeff   
   >   
   >   
   >   
   >   
   >>   
   >> That's a "result" worthy of a Nobel Prize, patents worth zillions   
   >> of  and at least 70 virgins.   
   >>   
   >> Yet "endless questions" go unanswered.   
   >>   
   >> You turn off everything in the house except the pool pump.   
   >> You watch the dial on the utility meter go around to calculate   
   >> power consumed.   
   >>   
   >> You hook a hot-plate to the generator output and see how long   
   >> it takes to boil away a pint of water.  A little math later   
   >> and you've real data that's easy to replicate experimentally for   
   >> your Nobel Prize submission.   
   >>   
   >> You drive your water-powered-car down to the patent office   
   >> and file a patent.   
   >>   
   >> The pool filter industry would explode overnight, so you'd want   
   >> to buy a lot of stock first.   
   >>   
   >> It's not rocket surgery.   
   >> It's merely a new branch of physics.   
   >> Let's do this!!   
   >> I'll bring the hot-plate and the stopwatch and the patent   
   >> application and the 70 virgins.  He's already got the water.   
   >   
      
   This is the pump in question:   
      
   http://www.northerntool.com/shop/tools/product_150884_150884   
      
      
   Jim Rojas   
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