HTH 52012 Ultimate Shock Treatment Swimming Pool Cleaner, Single

Good for the pool

Didn’t clear the pool, wasn’t as effective as what my pool store around the corner is offering! So after dumping all the bags in, more needed to be purchased! I guess being cheap didn’t work for me!

I have a ~10,000 gallon above-ground pool that had a fair amount of green algae coming out of the winter off-season (stuck to the floor and walls all over the pool, and murky water). I knew I needed to super-chlorinate, so I used the entire package. I ran the filter for the next two days, back-washing once, and the pool was crystal blue. Hard to argue with that - just know that this is unstabilized, so make sure that is what you are looking for!

This product does not dissolve in the pool as the directions suggest. I followed the directions and used the broadcast method in my 35,000 gallon pool. The next day (and following days) I noticed the blue residue in the bottom of my pool. I brushed the pool to disperse the crystals, but they still did not dissolve. I finally had to use my Polaris to vacuum the residue. Next I will try to dissolve this product in a 5 gallon bucket before adding to my pool. One packet of this product is for 11,000 gallons, I did not see this information in the product description.

Definitely works as advertised and better than any other brand! Do yourself a favor though and price check - I paid $53 for a 6 pack then saw individual bags were $5.99 each. Canceled the original order and ordered 6 bags. Saved about $18.