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HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula, 12 Count(Pack of 1)
$64.00 ($0.33 / Ounce)
(5,026)
In Stock
$64.00 ($0.33 / Ounce)
(5,026)
In Stock
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$85.06 ($0.44/Ounce)
Get it as soon as Monday, May 13
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From the brand
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Whether you're an engineer, technical director an owner or operator of a pool or spa, we can help you improve your operational efficiency, achieve your sustainability goals, and maintain the cleanliness and health of your water.
That’s exactly what we’ve been doing since our founding more than 100 years ago. Today, we're a leading specialty chemical supplier and water treatment company with a truly global footprint.
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HTH Pool and Spa Care
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Leisure Time products
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From the manufacturer
Shock Your Pool for Crystal Clear Water In 24 Hours
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Boost ChlorineChlorine sanitizes your pool to remove bacteria and other hazardous contaminants to keep water clean. Use HTH Super Shock! Treatment to restore chlorine levels that have been depleted by the sun, rain and heavy use. |
Kill Bacteria & AlgaeLow chlorine levels, poor water circulation and warm weather can encourage bacteria and algae growth. Rid your pool of black algae, mustard algae and green algae and prevent regrowth by shocking your pool once a week. Don’t forget to brush the floor and walls of the pool. |
Keep Water ClearThe fast-dissolving formula found in HTH shock treatments acts quickly to restore clarity to your water so you can be back in the swimming pool within 24 hours. Plus, the treatment won’t overstabilize your pool or fade your liners. |
How to Use HTH Shock Treatment
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Test pH LevelsDip an HTH Multi-purpose 6-Way Test Strip (sold separately) into the water to measure total alkalinity, pH, free available chlorine (FAC), calcium hardness, and cyanuric acid (CYA) or stabilizer. Balance water, and adjust alkalinity and pH levels, where applicable. |
2. Apply Directly to WaterBefore handling any chemicals, put on protective gloves and goggles. During evening hours and with the pump running, broadcast the HTH Super Shock! Treatment evenly over a wide area in the deepest part of your pool. |
3. Wait & Test Chlorine LevelsIf granules settle along the bottom of the pool, use a brush to disperse until granules are dissolved. Once free available chlorine levels are between 1 and 4 parts per million, your pool is ready to use again. |
Frequently Asked Questions
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Many factors work against the cleanliness of your pool. Sunlight breaks down the chlorine, causing the water to lose up to 5 ppm of chlorine in one sunny afternoon. Swimmers unintentionally release bacteria and contaminants like sweat, makeup and sunscreen. And storms can bring dust, pollen, leaves and algae spores. Shocking is one of the best ways to protect your pool water and keep it crystal clear. |
In ideal circumstances, shocking your pool once a week will keep it looking clean and clear, but heavy rainfall, signs of algae, heavy use or long periods of sunny weather may require more frequent treatment. Sundown is the best time to shock your pool, so the chlorine can work to restore water clarity without the sun’s harsh ultraviolet rays. Brush the pool floor and walls to help expose settled contaminants to the chlorine. |
First, brush the floor and walls of your pool to loosen the algae and break down the cells’ outer membrane to allow the chemicals to penetrate. Next, shock the pool with an HTH shock treatment, following label instructions. After 24 hours, use an HTH algaecide to treat the effected area, then brush the pool again. Keep the pump running overnight and continue to use the algaecide once a week to prevent future growth. |
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| 6-Way Pool Test Kit | 3" Advanced Chlorinating Tablets | Shock Advanced and Test Strips, 1lb (Pack of 15) | Advanced Green to Blue Shock | Advanced Algae Guard | Super Clarifier | |
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| Price | — | — | $64.00 | — | — | $10.67 |
| Function | Sanitizes and protects your pool water | Increases the chlorine level in swimming pools | Kills green algae and prevents future algae blooms in your swimming pool | Kills and prevents all algae types in your swimming pool water | Clears up dull, cloudy or hazy pool water | |
| Vinyl Lined Pool Compatible | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Saltwater Pool Compatible | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Kills Bacteria and Algae | ✓ | ✓ | ✓ | ✓ | ||
| Clarifies Water | ✓ | ✓ | ✓ | ✓ | ||
| Vacuum to Waste Pool Needed | ✓ | |||||
| Improves Filter Efficiency | ✓ | |||||
| Non-Foaming | ✓ | |||||
| Sun Protection | ✓ | |||||
| Uses per Week | 1 | 2 | 1 | 1 | 1 | 1 |
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How To Shock with HTH Super Shock Treatment
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Compare with similar items
This Item  HTH 52026 Super Shock Treatment Swimming Pool Chlorine Cleaner, 1 lb (Pack of 12) |  |  |  |  |  | |
| Price | $85.06 | $97.45 | $47.12 | $28.34 | $64.00 | -6% $37.77 List: $39.99 |
| Delivery | Get it as soon as Monday, May 13 | — | Get it as soon as Monday, May 13 | Get it as soon as Tuesday, May 14 | Get it as soon as Monday, May 13 | Get it as soon as Monday, May 13 |
| Customer Ratings | ||||||
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| Value for money | ||||||
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| Sold By | EstBuy Trading | Sahara Sellers | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
| weight | 12 pounds | 1 pounds | 6.3 pounds | 13.3 ounces | 1 pounds | 6 pounds |
Reviews with images
Used to work. Now it stains the pool. Everytime.
I used to use this product often. I had a recurring subscription through Amazon. One time I used it and later noticed a HUGE stain in my pool shortly after. I didn't know the stain was a reaction from this product immediately. I balanced my pool, bought stain removal (spending spending spending), followed all instructions to the T. EVENTUALLY, I got the stain to go away after a lot of time, money, effort, and frustration. So fast fwd. Next time I had to shock my pool, WITHIN MINUTES, it stain my pool again. But not just in that spot, literally in every spot the product touched the floor of my inground pool. I sprinkle it SO lightly, I literally walk around the pool like 3 or 4 times and salt and pepper it in just to try and prevent it from accumulating anywhere on the bottom of the pool. Alas, it does not matter. So I cancelled my subscription after having used this product for years. My feeling is that with the rise in costs on chlorine tablets, HTC seems to have taken the low road and changed the ingredients comprising their product. Nevertheless as a consumer, I will waste no more time or money on it. I will keep my pool balanced and stain free using other brands and products.
Top reviews from the United States
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Reviewed in the United States on April 12, 2024
Color: SuperSize: 1 lb (Pack of 6)Style: New PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on October 18, 2023
Color: SuperSize: Pack of 6Style: Old PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on April 13, 2024
Color: SuperSize: 1 lb (Pack of 12)Style: New PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on March 14, 2024
Color: SuperSize: 1 lb (Pack of 12)Style: New PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on November 19, 2023
Color: SuperSize: 1 lb (Pack of 12)Style: New PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on April 16, 2023
Color: SuperSize: 1 lb (Pack of 12)Style: New PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on February 24, 2024
Color: SuperSize: 1 lb (Pack of 12)Style: New PackagingPattern Name: CleanerVerified Purchase
Reviewed in the United States on February 5, 2024
Color: SuperSize: 1 lb (Pack of 12)Style: New PackagingPattern Name: CleanerVerified Purchase
