Liquid chlorine and powdered shock are both considered unstabilized forms of chlorine. It is important to note their similarities and differences when determining which sanitizer is right for you and your pool.
Similarly, both forms have a higher concentration of available chlorine than those used in daily chlorination. They also both kill nearly all living microorganisms, bacteria and contaminants with ease. In addition, liquid chlorine and powdered shock will clear your cloudy pool water fast while also helping to control algae.