HTH Chlorine Shock — Granules, 13.3 oz — Pool Shock Treatment for Weekly Chlorination

I've used hth items for several years and never had any issues until this year. The granules don't dissolve as they did in previous years. It would usually kill all algae, and clean the water by using one bag every two weeks, this year I've used 2bags in a full 7day week. Doesn't clean any oils from sunscreen or anything. Once I had finally gotten the algae out after 2 months trying to get rid of it I ended up still having very cloudy water so frustrating.

I believe I received old bags of shock. all the bags were damp and stuck together. I used 2 packs in 3 days with the pump running 10 hrs a day, and my pool is still murky dark green.

I have had issues with shock not wanting to dissolve and stain my liner in the past. We have had 0 issues with this product. I will be sticking to this for years to come. We have a 10,000 gallon pool

Super effective pool shock. It cleared up my water fast and worked just as advertised. Great product—just watch out when opening the pouch so the powder doesn't spill or touch your skin.

i always use this brand, but this particular 6 pack must've been old or not stored properly the granules didn't sink nor help my pool.. just got a new pack from another seller and it was much better. i used them not even thinking about it, until it was too late.

I bought 6 to last several weeks. My pool requires 2 packets at a time on a weekly basis, but I was starting with a greenish water and anticipated the need for additional shock. I put in 2 in the evening with the pump running continually. In the morning, it was overcast and raining, but the 2 packets of shock didn't touch the clarity of the water at all. I tested my PH, CYA and the rest of the levels. My PH was too high, but CYA looked perfect. I added a SUPER Algaecide, PH balancer and 2 more bags of shock. Still green and it still says that is no free chlorine in the water. Basically, I used all 6 bags of shock and did not see any results. Don't waste a penny on this product.

Item works well, dissolves fast, makes pool cloudy at time of use but clears quickly. used it and it took care of slight algae problem we had. Has slight chlorine smell when first used but doesn't last long. Follow instruction on package.

3 bags were damaged and all over the box. Chlorine all over the box.

This product does what it is supposed to do however the cost is ridiculous compared pre covid prices. I believe that all these pool products are priced too high and taking advantage of people.

The product is fine, however I have found the same product elsewhere at a much better price.