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In The Swim

In The Swim Pool Super Opening Chemical Start Up Kit - Above Ground and In-Ground Swimming Pools - Up to 35,000 Gallons

    • Based on 15,182 reviews
Condition: New
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$63.99 Why this price?
Easter Deal · 7% off was $68.98

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As low as $10.67 / mo
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Availability: In Stock.
Fulfilled by Amazon
Arrives Apr 25 – Apr 29
Order within 23 hours and 36 minutes
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Style: Kit Only


Size: Super - 35k gallon


Features

  • Save time and take the guesswork out of measuring chemicals when opening your pool with our pre-measured pool opening kits.
  • (4) bags of 99% sodium dichlor (Di-Zap), which will get your pool water clean, clear, and safe to swim in.
  • Clarifier keeps your water crystal clear by coagulating dirt, which helps your filter be more efficient.
  • Algaecide works in conjunction with pool shock to defend against multiple types of algae from invading your swimming pool.
  • Sun sorb oil and scum absorber will soak up suntan oils, body oils, grime, and scum, keeping your water clear.

Product Dimensions: 12.6 x 11.3 x 8.6 inches


Item Weight: 1 pounds


Manufacturer: In The Swim Discount Pool Supplies


Item model number: KSS300001AE


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 25 – Apr 29

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great product
Style: Kit Only Size: Basic - 7.5k gallon
I’ve been using In The Swim Pool Basic Opening Chemical Kit for a few seasons now, and it never disappoints! This kit has everything needed to get my pool up and running after winter. The instructions are clear and easy to follow, making the entire process stress-free. The shock is powerful and does a great job of eliminating any leftover bacteria and algae from winter. The algaecide helps keep the water crystal clear, and the stain and scale preventer ensures my pool equipment stays in great condition. Within a day or two of adding the chemicals, my pool is sparkling and swim-ready! Another great thing about this kit is the value—it’s much more affordable than buying all the chemicals separately. If you’re looking for a reliable and cost-effective way to open your pool, I highly recommend this product. Would definitely purchase again! ... show more
Reviewed in the United States on February 2, 2025 by miranda
    • Worked very well for startup
Style: Kit Only Size: Basic - 7.5k gallon
Review Image by Nick Mohrbacher Nick Mohrbacher
Review Image by Nick Mohrbacher Nick Mohrbacher
I use this product to open my pool for the summer and it has kept my pool water crystal clear and the chemicals fairly balanced. I feel like this was a great value for the purchase because it provided everything you needed to get going and keep the water looking, pristine highly recommended. I also really like the sun sponge that picks up the oils on the surface. It does a fantastic job. ... show more
Reviewed in the United States on July 23, 2024 by Nick Mohrbacher Nick Mohrbacher
    • Pool starter kit for your pool.
Style: Kit Only Size: Basic - 7.5k gallon
It’s a good starter kit.
Reviewed in the United States on March 21, 2025 by Amazon Customer
    • With any product working like it should and claims!
Style: Kit Only Size: Super - 35k gallon
I had just ordered a pool after not having one for over 20+ years,So I didn’t know about a lot of the new products I just knew what I needed and this opening pool kit seemed to check off all the boxes,It’s easy to use the directions are clear,All I had to do was read which one to start off with,The value of the product was affordable considering what you would pay for the individual bottles and shock packets, I couldn’t believe the prices for the pool products that you just have to have,So far after using this product I have only had to deal with iron from my well, I would’ve liked to have a couple of bottles to help remove the iron out,But I bought some floc and it really helped and the clarifier did a good job, I still have some shock and algacide left since I have been fortunate to not get algae in my pool which concerned me, I would recommend this product to anyone who wants to have what you need to get your pool up and running to enjoy,So for the money it’s a good deal and it worked for me, I am now enjoying a clean and clear pool,But I have to say having the right sand filter and pump will make all the difference in the chemicals working properly, I hope I have helped others considering buying this product by my experience using it, I wouldn’t hesitate buying it again!!! ... show more
Reviewed in the United States on July 8, 2022 by Catherine Arnette
    • A must buy if you have a Pool
Style: Kit Only Size: Basic - 7.5k gallon
This pool chemical kit is a total game-changer. It works fast, opened our pool in no time, and had the water crystal clear within a day. Super easy to use and really effective—perfect for getting the season started right. Highly recommend for a hassle-free pool opening.
Reviewed in the United States on April 9, 2025 by Murphy
    • Pool Startup kit
Style: Kit Only Size: Super - 35k gallon
Use this kit (as well as closing kit) every year. Straight forward, easy to use, expected results
Reviewed in the United States on March 22, 2025 by Chuck
    • Great kit
Style: Kit Only Size: Basic - 7.5k gallon
Great item
Reviewed in the United States on April 15, 2025 by Karen M. Gingher
    • Quality
Style: Kit Only Size: Deluxe - 15k gallon
Worked petty good
Reviewed in the United States on November 14, 2024 by wayne woods

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