I recently came across a solar pool  product I have never heard of and would like to know if  you are familiar with it and if so, what you think of it.  The name is Chlorine Free Sun Shock Pool Purifier and it's made by Remington Solar.  I suppose other manufacturers might make something similar. I am curious if it really does what it claims which is to clear algae and practically eliminate the need for chlorine through its' chemical makeup.  I don't trust many online reviews, good or bad.  I figure people who know pools know best!  Any feedback regarding this product or others like it would be appreciated.  Thanks.