HTH 52012 Ultimate Shock Treatment Swimming Pool Cleaner, Single

This stuff clears up my 18 ft above ground every time. Very effective, at a good price.

good deal, works well

This product is just what I needed and I really appreciate the customer service from this company.

It's a good product but ridiculous price point. Not just here, but everywhere.

It was the item I requested. Fast delivery. Thanks

We use this for our small pool and keep the water nice and clear at a reasonable price.

This is a great product, easy to use, and lasts a long time. We have a 42” deep above ground and just followed a YouTube video I found. Packaging was excellent and comes with 6, 1 lb bags inside a larger bag. We opened the 1 lb bag and while using a glove pour coin dollar size amounts in the palm of my hand toss into the pool, do this 10 times while walking around the pool. Use your skimmer to give it a final mix.We follow with the arm and hammer clear blue tablet in the pump basket, and 1 chlorinating puck in the puck float. We do the shock and clear blue tablet together each time, and the chlorine puck as needed.The first time around our levels were good after shocking twice bc the chlorine levels were not high enough. If you do not want to add shock to increase chlorine, you can buy other products, or just straight bleach.Ive seen negative reviews on this product due to it not breaking up algae.... I did research on this and this product will not break up algae forming on your pool. If you get algae starting to grow at the bottom you will need to scrub first, or get creative and glide your feet along the bottom and sides to break this up. Then you can shock the algae. Should see results in as little as 24 hours! Make sure you test your water and adjust as needed. Test strips are easy to use.Hope this helps. If you did find this helpful please hit helpful below. This is an honest review from an Amazon customer! Thank you.

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.