Question: what is the difference between bleach and pool shock?
Answer: The "chlorine" in "chlorine bleach" is actually sodium hypochlorite. Swimming pool shock contains 12.5% sodium hypochlorite (bleach) vs. 6-8.5% for Clorox (bleach). ... At a 12.5% concentrate, liquid pool shock is approximately 2x's stronger than Clorox bleach.