In The Swim Opening Kit and Chlorine Bundle - Pre-Measured Opening Kit for Easy Use - 25 Pound Bucket of 3-Inch Stabilized Chlorine Tablets - Inground and Above Ground Pools Up to 15,000 Gallons
Condition: New
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Saturday, Sep 13
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Style: Kit + Chlorine
Size: Deluxe - 15k gallon
Features
- Stress-Free Pool Opening: Pre-measured kit removes guesswork and saves time, making it easy to kick off the pool season.
- Bundle includes 25 pound bucket of 3 inch stabilized chlorine tablets and 15,000 gallon start up kit
- Powerful Chlorination: Includes 3-inch tabs with 99% Trichloro-S-Triazinetrione and 90% stabilized chlorine for long-lasting, UV-protected sanitation.
- Startup Clarity & Algae Control: Algaecide works with shock to combat algae growth, while Clarifier and Sun Sorb boost water clarity by removing oils, grime, and scum for a cleaner, well-filtered pool.
- NOTE: This bundle will likely ship in multiple packages, which may come from different locations and arrive on separate days. Please allow an extra day or two for all items to be delivered.
Brand: In The Swim
Item Weight: 2 Pounds
Item Form: Tablet
Product Benefits: Kills Bacteria, Prevents Stains, Controls Algae, Maintains Clean Sanitized Water
Item Weight: 2 pounds
Manufacturer: ALL CHEM INDUSTRIES
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 13
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: Kit Only
Size: Super - 35k gallon
I can't say enough good things about the In The Swim Pool Super Opening Chemical Start Up Kit! If you're getting ready to open your pool for the season, this kit is an absolute must-have. Whether you have an above-ground or in-ground pool (up to 35,000 gallons), this kit has everything you need to get your pool sparkling clean and ready for swimming. The instructions are super clear and easy to follow, so even if you're a pool-opening newbie, you’ll have no problem. It includes everything from chlorine shock to algaecide, which is perfect for getting rid of any buildup from winter. I also love that it comes with scale and stain preventer—a great way to protect your pool surfaces right from the start. What really impressed me was how quickly the pool started to clear up. After applying the chemicals, the water was noticeably clearer within just a few hours. I was able to swim in just a couple of days, and the water has stayed crystal clear ever since. The quality of the chemicals is top-notch. I’ve used other pool start-up kits before, but none of them had the same effective results as this one. It’s definitely worth the price for the convenience, effectiveness, and peace of mind it offers. If you're looking to get your pool ready for summer with minimal hassle, this kit is absolutely worth it. Highly recommend to anyone with a pool, big or small!
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Reviewed in the United States on June 2, 2025 by Justin Morgan
Style: Kit Only
Size: Basic - 7.5k gallon
Perfect for getting started—has everything you need to get up and running quickly. I’m using it with a small 330-gallon blow-up pool, just adding a little at a time, and it’s been working well to maintain the water. Convenient and effective.
Reviewed in the United States on June 12, 2025 by ThomasB
Style: Kit Only
Size: Deluxe - 15k gallon
We have been using the pool opening and closing kits for years now. So easy to use and it works. Love this brand!!!
Reviewed in the United States on May 28, 2025 by Rebecca S. Potts
Style: Kit Only
Size: Deluxe - 15k gallon
Great product. Everything you need to get your pool ready for the season. Clear instructions on how much of each product to use. Enough to get me through almost the entire swim season. Just picked up a couple extra shock treatments at my local store towards end of season. Bought again this summer !
Reviewed in the United States on June 10, 2025 by Amazon Customer
Style: Kit Only
Size: Basic - 7.5k gallon
Literally revived my pool’s water. The cover ripped late in the winter so it was pretty gross and it got it nice and clear, along side a filter and some chlorine tablets. I followed the order on the product listing, not the one that was on the paper that came with it. Amazing work. My pool is also way smaller than this kit is made to treat so I just guesstimated the amount I needed of eat chemical.
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Reviewed in the United States on May 30, 2025 by Ashley P. Ashley P.
Style: Kit Only
Size: Deluxe - 15k gallon
AlwYs use a start up kit prior to opening your pool. It aids the chlorine and clears any crazy stuff in your pool. Really enjoy using Amazon for this , I went to intheswim.com and found that they were a bit higher in price than Amazon.
Reviewed in the United States on May 20, 2025 by Rebecca Richardson
Style: Kit Only
Size: Super - 35k gallon
really great value its worth buying just for the value of the algecide and stain remover content in kit alone compared with a retail store. I really liked that the kit has everything one needs for pool opening and is a good value for even buying it to stock up on supplies than buying them individually.
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Reviewed in the United States on June 5, 2025 by computer geek
Style: Kit Only
Size: Deluxe - 15k gallon
Kit was ok. I applied more chemical than suggested for my pool size, and it hasn’t brought Ph or alkalinity up to standard. I’ll have to purchase some additional product tomorrow.
Reviewed in the United States on June 9, 2025 by Brian Buick