The ankh is an ancient Egyptian symbol. It looks rather like a key. The ankh symbol was used in hieroglyphics and in designs. One of the artifacts carefully placed in King Tut's tomb was an ankh. The ankh must have meant something important to the ancient Egyptians, but we're not sure quite what that was.
You may want to look at my article HERE on lowering stabilizer. Basically if you use chlorine tablets, they have stabilizer in them and over time, can over stabilize the pool water and will need to be diluted. Also calcium levels that are high, rainfall can be a benefit to diluting the water as well.
Uses of Chlorine. 1  Chlorine is used (generally a particular compound of chlorine) to kill bacteria in drinking water and swimming pools. 2  While not used as often today, some armed forces still use chlorine as a poison gas. 3  Chlorine is used to make plastics. 4  PVC (polyvinyl chloride) is made from chlorine. 5  Chlorine is used in bromine extraction. 6  Methyl