HTH 52040B, Swimming Pool Care Shock Ultra, 6 Pack | Swimming Pool Chemical; Cal Hypo Formula; All-in-One Pool Shock to Increase Chlorine Levels; Visibly Brilliant Sparkle

This is our first year having a pool. After trying several different shocks we settled on HTH Ultra Pool Shock.The product dissolves quickly and doesn’t leave behind any residue or cloudy water like some cheaper shock treatments I’ve tried in the past. Within a few hours of application, the water looks noticeably clearer, and it does a great job of eliminating that faint “chlorine smell” and any algae or bacteria growth. I also appreciate that the dosing instructions are straightforward, so there’s no guessing game when treating different pool sizes. One packet is usually enough to restore balance after a heavy swim day, rainstorm, or when the water just starts to look a little dull. It gives me peace of mind knowing that my family is swimming in clean, well-sanitized water. Overall, HTH Ultra Pool Shock is reliable, effective, and worth the price for the results you get. If you want a hassle-free way to maintain crystal-clear water, I highly recommend it.

Worked well especially with all the hot days it seemed to control algae growth.

Works well.

Excellent for my salt water pool

Although it is not recommended we use this in our hot tub spa. Just adjust the amount to allow for the smaller pool. Like the product keeps the water clear. Once the pH was balanced this product seems to maintain everything well.