Arch Chemical HTH Pool Shock Super Shock Treatment 6 Count 6lbs (52008)

I usually try to purchase products on Amazon with a high review. I saw the review on this product and couldn't believe it , nothing gets a 5. Anyway I purchased it and found out why, best pool shock I have ever used. We had Black Algea spores popping up after about 6 straight days of rain and I usually shock the pool then the next day use a steel brush to get them loose. Well I shocked the pool and 4 hours later went back to scrape the algea off. I couldn't believe this product not only loosend them they were gone , 100% gone. The water was much clearer and blue. Well worth the money. Great great product.

This is typical shock that you really need for those hot summer months when algae forms so easily. It did the trick! It was cheaper than the pool stores nearby, and was equally effective in eliminating the yellow and green algae that forms in Florida inground pools!!

Really effective and gets the job done.

We used to always use liquid shock but having to store the large 2.5g jugs, along with the potential of spillage, and storage in general caused us to move to powdered shock. When I started researching options, I compared a few brands with regard to the amount of chemical per pound of powder. HTH Super Shock came in as the best value (assuming the percentage of chlorine is accurate) per pound. We've been using this product now for 3 months and so far, it is working very well (measured by weekly chem tests).The only suggestion I would have is possibly a grid/table/chart for those who struggle with how much to use and/or may not have a kitchen scale as well as graduated marking on the package. The dosage amount is simple to calculate but it would be helpful with a quick table like: "1/4 package (4oz) for 3400 gallons, 1/2 package (8oz for 6750 gallons, etc.) and graduated lines printed to help dosage.

For years we have used the Clorox Extra Blue shock in our pool. We live in an area that’s extremely hot and humid, with afternoon storms frequently in the summer. We had to shock weekly or it would go green. But I just thought that’s the way it goes. I bought the HTH shock because it was on sale and I had reward points on my credit card. The reviews were mostly positive. I shocked it once and then again in a week out of habit. Today I had planned to do it again, even though my pool looks amazing and clear. I thought I should do it to stay ahead of the game. Instead I decided to test my water since I haven’t so far this season. My chlorine level was maxed out. I shouldn’t have shocked it last week apparently. I’m sold. This product is much better than what I was using before.