From: mung_me@att.net   
      
      
   >   
   > 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.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)