Doheny's Super Pool Shock | Pro-Grade Chlorine Shock, Quick-Dissolving, Fast-Acting 68% Cal-Hypo Granular Pool Shock | 6 x 1lb Bags, Proudly Made in The USA

This is a great product...I have been using a popular brand of shock for my pool...I switched to these last year and for the money they are much cheaper and work just as good... great product...I will continue using these along with the 3" pool pucks...

Works well and quickly. Easy to use.

Works just like you'd expect granular calcium hypochlorite to work. Effective shock, no clumping, and relatively easy-to-open pouches. It dissolves relatively quickly in a warm pool, but does require a bit of brushing. (If you've never used a calcium-based pool shock before, do your homework. It can bring up the hardness of the water, and if you already have hard water, it can have side-effects. Otherwise, it's a great, shelf-stable alternative to sodium hypochlorite.)

Works fast to clarify the water, the effect is long lasting. Better price shock than from local pool store.

It's a good product at a good price.

Works beautifully

This works really great for our needs. We have bought this product for two years now and have been happy with it. !!

Doheny's Super Pool Shock is so far the best shock that I have ever come across. I highly recommend!