From: ouasami@do-not-send.com   
      
   On 12/11/18 07:33, Libor Striz wrote:   
   > Oumati Asami  Wrote in message:   
   >>   
   >> The shape of my pool is similar to what's on the Korean's flag, the   
   yin-yang, only half of it, of course, and the tail is cut off. I have searched   
   the net trying to figure out how to calculate the volume of such a pool but   
   couldn't find it.   
   >   
   > Rather estimation than exact calculation.   
   >   
   > Estimate a thought rectangle the pool would fit in.   
   > Calculate the rectangle area and multiply it by an estimated   
   >   relative portion of the rectangle the pool may occupy.   
   >   
   > E.g if the pool would fit in a rectangle 4x10 meters, taking cca   
   >   60% of its area, the pool area would be cca 4x10x0.7=24 square   
   >   meters.   
   >   
   > If estimated average depth is 1.5 m,   
   > then volume is 24*1.5=36 cubic meters, or 36000 litres.   
      
   I estimate the volume of the pool to be 68000 liters.   
      
      
   >   
   >> I just arbitrarily add some amount of hypochlorite to the pool. Only one   
   person uses the pool occasionally. I figure as long as I keep the mold from   
   growing, it's OK.   
   >   
   > The target chlorine content is AFAIK about 5 ppm, i.e. 5 mg/L I,   
   >   for above  it would be 180 g Cl/ basin.( Doses is higher as some   
   >   chlorine is consumed and some escapes).   
      
   Is the 5 mg the weight of the chloride (Cl-), chlorine (Cl2) or   
   hypochlorite (OCl-)?   
      
   >   
   > Note that some milkiness may happen in the pool water which became   
   >   rich in dissolved organic matter ( liked washed out sweat )   
   >   
      
   Although I diligently remove leaves three times a day, I can't do it at   
   night. In the morning, I often find leaves and dead frogs (sorry for   
   them) in the bottom of the pool .   
      
   >   
   > I worked in past in water company lab. A private customer had a   
   >   problem with some water haze after   
   > water treatment . Analysis told it contained 20 mg /L of dissolved   
   >   organic carbon. For comparison, water coming out from waste water   
   >   purification station has significantly  less.   
   >   
   I wonder how you measure dissolved organic carbon.   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)