--- product_id: 538521631 title: "HTH 52038 Swimming Pool Care Green to Blue, Advanced Shock System, 2-Step Swimming Pool Care Solution, 1 Kit" brand: "hth" price: "R3693" currency: ZAR in_stock: true reviews_count: 5 category: "Hth" url: https://www.desertcart.co.za/products/538521631-hth-52038-swimming-pool-care-green-to-blue-advanced-shock store_origin: ZA region: South Africa --- # Powerful Cal Hypo shock 2-step chemical system Clear water in 24 hours HTH 52038 Swimming Pool Care Green to Blue, Advanced Shock System, 2-Step Swimming Pool Care Solution, 1 Kit **Brand:** hth **Price:** R3693 **Availability:** ✅ In Stock ## Summary > 💧 Turn your green pool nightmare into a crystal-clear oasis—fast, easy, unstoppable! ## Quick Answers - **What is this?** HTH 52038 Swimming Pool Care Green to Blue, Advanced Shock System, 2-Step Swimming Pool Care Solution, 1 Kit by hth - **How much does it cost?** R3693 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/538521631-hth-52038-swimming-pool-care-green-to-blue-advanced-shock) ## Best For - hth enthusiasts ## Why This Product - Trusted hth brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Action Formula:** Shock plus flocculant combo drops particles for effortless vacuuming - • **Pro-Level Pool Care:** Pair with HTH 6-Way Test Strips for precision water balance twice weekly - • **Rapid Algae Annihilation:** Transforms green pools to sparkling blue in just 24 hours - • **No Overstabilization Risk:** Cal Hypo formula avoids cyanuric acid buildup and chlorine lock - • **Liner-Friendly & Universal:** Safe for all pool types, especially vinyl liners—no fading guaranteed ## Overview HTH 52038 Swimming Pool Care Green to Blue Kit is a professional-grade, 2-step shock and flocculant system that eradicates severe algae blooms and clears pool water within 24 hours. Featuring a Cal Hypo-based shock that avoids chlorine lock and a powerful flocculant for easy debris removal, it’s compatible with all pool types including vinyl liners. Trusted by thousands, this kit delivers rapid, visible results and pairs perfectly with HTH test strips for ongoing water balance. ## Description The HTH Super Green to Blue Advanced Shock is a 2-part system. Pack I shocks your pool with a boost of chlorine, helping you fend off bacteria. Pack II is a powerful flocculant that drops particles to the bottom of the pool for easy vacuuming. Both packs work together to create beautiful, crystal-clear pool water within 24 hours. How To Use: Simply follow the on-pack instructions for both Pack I and Pack II. Pack I is the Cal Hypo Shock treatment and Pack II is a flocculant that drops dead particles to the bottom of the pool for easy vacuuming. About HTH Pool Care: HTH was developed with the pool owner in mind. We know that maintaining your pool water can be a lot of work. That’s why we're here every step of the way, helping you clear the uncertainty from pool care. With economical, easy-to-use solutions, HTH is designed to work hard so you're prepared to tackle whatever life throws in your pool. From balancing your water to treating green water, we offer a full line of products to keep your pool water healthy and your swimmers happy. Review: Worth the money to get your pool green free - Best invention for green pools. Love how fast it works and makes the water clear. It may seem expensive, but it's strong to get that green out! I love having back up of this product in this hot weather since it plays havoc on pools, Review: This stuff is AMAZING!!! 🤩 - I bought this on a friend’s recommendation & it worked like a miracle! My husband went through a pretty informative “pool school” when we bought our pool several years ago & has done great at keeping it clear & maintained. This past year we didn’t close down our pool properly & it was green with leaves, debris & tadpoles living in it. He shocked it several times & added chlorine & clarifiers but discovered it was too alkaline & chlorine locked. The water had cleared up somewhat & turned a slightly greenish hue, however we could not see the bottom. I ordered the Green to Blue & neither of us were too optimistic it would truly work. To our surprise the next day we woke up to crystal clear water & we could see all the way to the bottom! The powder you put in circulates & then falls to the bottom so you do have to sweep it out afterwards but your pool water will turn out beautifully blue & clear! We will definitely be buying it every year from now on!!! ## Features - BENEFITS: Fight a severe algae bloom and transform your swimming pool water from green to blue in 24 hours with this easy-to-use system - EASY TO USE: Simple 2-step system; Pack I is a strong algae-fighting pool shock with Cal Hypo; Pack II is a powerful flocculant that drops particles to floor for easy vacuuming - VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula transforms water from green to blue within 24 hours without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock - COMPATIBLE WITH ALL SWIMMING POOLS: This product is effective for all pool types that can vacuum to waste; It’s ideal for vinyl-lined pools and won't fade liners - YOU'RE ALL CLEAR WITH HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09R82PSPH | | Brand | HTH | | Brand Name | HTH | | Customer Reviews | 4.4 out of 5 stars 1,987 Reviews | | Included Components | HTH 52038 Swimming Pool Care Green to Blue, Advanced Shock System, 2-Step Swimming Pool Care Solution, 1 Kit | | Item Form | Powder | | Item Type Name | 2-Step Swimming Pool Care Solution | | Item Weight | 7.2 Pounds | | Item form | Powder | | Item weight | 7.2 Pounds | | Manufacturer | Innovative Water Care | | Manufacturer Part Number | 52038 | | Model Number | 52038 | | Number of Items | 1 | | Number of Packs | 2 | | Product Benefits | Controls Algae | | Product benefits | Controls Algae | | UPC | 073187520388 | | Unit Count | 115.2 Ounce | ## Product Details - **Brand:** HTH - **Item weight:** 3.27 kg - **Item form:** Powder - **Product benefits:** Controls Algae - **UPC:** 073187520388 ## Images ![HTH 52038 Swimming Pool Care Green to Blue, Advanced Shock System, 2-Step Swimming Pool Care Solution, 1 Kit - Image 1](https://m.media-amazon.com/images/I/81A38pG1ImL.jpg) ## Questions & Answers **Q: I have a vinal pool with 2700 gal of water. Will this kit work for me?** A: Great question. HTH Pool Care Green to Blue Advanced is a great product but it is ONLY for swimming pools that have the capability to "VACUUM TO WASTE" which means bypassing the filter. Generally, pools that use a cartridge filter do not have this capability and that is usually the case for smaller pools like yours. Just to clarify, Green to Blue is a "system" which includes 4 packs of shock and 2 packs of flocculant. It's the flocculant that would cause some trouble if not able to vacuum to waste. The floc causes all the dead debris to drop to the floor of the pool, and then needs to be vacuumed to waste. So please make sure about the "vacuum to waste" part before using this product. IF you have other questions or need assistance, please feel free to reach out to our Consumer Engagement Team at 866-484-7665. We're Here To Help, M-F, 9 AM - 7 PM (ET). **Q: Does this new package of green to blue only come with 1 pack of each? The old package we use to buy had 3 of each in it.** A: Thanks for this question. As the manufacturer of this product, this kit should come with 4 bags of shock and 2 bags of flocculant. Total 6 bags. If you did not receive it with all contents, please contact the vendor/seller for a refund and replacement. **Q: Do I have to buy two boxes for pool with 25000 gals** A: We are the manufacturers of HTH® Pool Care Green to Blue Advanced Shock System. One box treats a pool up to 20,000 gallons of water. So for 25,000 gallons you would use one entire box and part of another box, so 2 kits would be best. If you have questions about this system, please let us know at 866-484-7665. **Q: Max time to vacume ? Can you wait longer then 24 hour?** A: We are the manufacturer of HTH® Pool Care Green to Blue Advanced, when using this product, it may take 12- 24 hours for the step 2, flocculant, to settle to the bottom of the pool. We recommend vacuuming it to waste as soon as possible. Also, before using make sure your filter has a waste setting so you can vacuum out the residue without going through the filter media, residue and water go out the backwash hose. To find out if this product is right for you just give us a call, 866-484-7665. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth the money to get your pool green free *by D***D on 22 July 2026* Best invention for green pools. Love how fast it works and makes the water clear. It may seem expensive, but it's strong to get that green out! I love having back up of this product in this hot weather since it plays havoc on pools, ### ⭐⭐⭐⭐⭐ This stuff is AMAZING!!! 🤩 *by B***. on 15 July 2026* I bought this on a friend’s recommendation & it worked like a miracle! My husband went through a pretty informative “pool school” when we bought our pool several years ago & has done great at keeping it clear & maintained. This past year we didn’t close down our pool properly & it was green with leaves, debris & tadpoles living in it. He shocked it several times & added chlorine & clarifiers but discovered it was too alkaline & chlorine locked. The water had cleared up somewhat & turned a slightly greenish hue, however we could not see the bottom. I ordered the Green to Blue & neither of us were too optimistic it would truly work. To our surprise the next day we woke up to crystal clear water & we could see all the way to the bottom! The powder you put in circulates & then falls to the bottom so you do have to sweep it out afterwards but your pool water will turn out beautifully blue & clear! We will definitely be buying it every year from now on!!! ### ⭐⭐⭐⭐⭐ Green to Blue “product name says it all” *by B***S on 17 July 2026* I have used this to open my pool every year for the past several years and it works every time I’ve used it. It truly takes a green pool and turns it blue overnight. Yes you must vacuum to waste the following day but it works perfectly every time. Highly recommended ## Frequently Bought Together - HTH 52038 Swimming Pool Care Green to Blue, Advanced Shock System, 2-Step Swimming Pool Care Solution, 1 Kit - HTH 52036R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, (6 Pack) - Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/538521631-hth-52038-swimming-pool-care-green-to-blue-advanced-shock](https://www.desertcart.co.za/products/538521631-hth-52038-swimming-pool-care-green-to-blue-advanced-shock) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-04*