Through the use of coral in gold several diseases can be warded off, particularly tropical fevers, chicken pox, jaundice, fistula, impotency and ailments pertaining to blood, particularly impure blood.
The goal of shocking your pool is to raise the free chlorine level of your pool water to roughly 10 times the combined chlorine level of your pool water.
Boosting your chlorine level in a pool that has a very low level, is a common use of pool shock treatments. Tablets can take many hours to most of a day to dissolve and bring up a chlorine level. Granular chlorine can do this in minutes.