4. clear water that flows from the overflow pond sedimentation pond flow comes to chlorine, which this spring will work by drops of chlorine into the water by drops of chlorine or pH value depends on the pH value drops if it was low-chlorine. If the pH value drops high chlorine chlorine is observed at the remaining amount. Using free chlorine test kit that remains in the water. The normal value is 1.0-1.5, which measure chlorine measured 2.
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