Used to be a great value , but not so much anymore

This stuff works for me, although I usually have to wait 2 or 3 days to get results (i.e., blue water).

Nonsense. I never write reviews but saw all the one star reviews. If you follow directions, this product works fine and is a really good price.

Purchased MM Shock and my pool became clear and clear of algae within a couple days. MM Shock is a great deal!

Beware this has stabilizer in it and not just chlorine. Need to know your chemicals putting into your pool.

great way to get things done came right store and ready for pickup

Bought this last year probably around 50.00 or 60.00 bucks this year 129.00 wow