From: poutnik4REMOVEnntp@CAPITALSgmail.com   
      
   Oumati Asami  Wrote in message:   
      
   > If it is 60%, why multiply by 0.7?   
      
   I guess there was initially 70%, I missed to correct it .:-)   
   One number or the other, it is just an illustration.   
      
   > I'll take a measurement and report it back here. It may take some time as   
   the pool is really milky now. I'll wait a day before measuring the depth.If I   
   had proper equipment, I would filter the water and treat the ppt with acid to   
   see if it is carbonate.   
      
      
   --   
   Libor Striz aka Poutnik ( a pilgrim/wanderer/wayfarer)   
      
   "Humour is the only effective weapon against stupidity."   
   Miloš Forman   
      
      
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