

HTH Pool Care Shock Advanced — Granules, 12 Pack (1 lb each) — Pool Shock Treatment for Weekly Pool Sanitizing
Key item features
- Advanced Weekly Treatment: This multi-functional shock treatment is designed for weekly use, effectively preventing bacteria and algae while solving 90% of common pool water problems within 24 hours.
- Rapid Clarity Restoration: The powerful 4-in-1 formula restores crystal clarity to pool water within 24 hours, providing a visibly brilliant sparkle and reducing chlorine odor and irritation.
- Cal Hypo Formula: Utilizing a Cal Hypo-based formula, this product sanitizes without adding cyanuric acid (CYA), thereby preventing over-stabilization or chlorine lock.
- CYA-Free Chlorination: Unlike traditional chlorine products, its fast-acting, fast-dissolving Cal Hypo formula provides chlorination without increasing CYA levels, ensuring a beautiful sparkle all season.
- Universal Pool Compatibility: Suitable for all pool types, this shock treatment will not fade pool liners, making it a versatile solution for maintaining healthy swimming pool water.
- Simple Application Process: For best results, apply HTH Shock Advanced weekly according to on-pack instructions, directly to pool water or skimmer, to maintain free available chlorine levels between 1 and 4 ppm.
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Showing 1-3 of 2,180 reviews
Verified Purchase
Ok but unsure
It does take longer to dissolve but works well. Due to the rain lately we've had to deal with algae compared to last year. I'm assuming it's due to the rain but I'm having to use 2 bags every 2-4 days. It seems I remember last year only having to shock the pool 1 x a week and only 1 bag. Unless this product has been changed. I will continue the rest of this summer and see how it goes. I may seek a different product next year as 2 bags 2-4 days seem excessive.
Verified Purchase
Best price and quality
I bought this HTH brand after seeing great reviews on multiple pool care sites. Walmart online purchase and pick up was by far the best price. I was very pleased with this shock. Does really well for us. Crystal clear pool. I followed the directions and mixed in a bucket to add it as a dilution solution. I preferred to add over time into the return stream over 5-7 minutes. If done slowly it disappears almost immediately. Works on my 24 round above ground.
Verified Purchase
HTH Pool Care Shock Advanced
Walmart's pool supplies are consistently less expensive than other sources and HTH Pool Care Shock Advanced is a perfect example. I've used HTH products for years and have never had any issues. The Pool Care Shock is something I use all the time. I live in FL and between heavy summer rain and the heat and sun, it doesn't take much to throw your pool chemicals out of whack. I use HTH shock (and other HTH products) to keep my pool crystal clear and safe!
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