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Doheny's Master Pool Opening Kit | Made in USA | Start-Up Chemicals for Pools | Includes Ultimate Kit, Natural Chemistry, Metal Out, Clarifier, Spring Control & Super Shock | Treats 30,000 Gallons

  • Based on 902 reviews
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Availability: In Stock.
Fulfilled by Doheny's Pool Supplies Fast

Arrives Thursday, May 7
Order within 7 hours and 29 minutes
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Size: Pool Master Kit (For Pools Up To 30,000 Gallons)


Features

  • Proudly American-Made Effortless Pool Opening: Trusted for over 50 years, Dohenys family-owned brand delivers a complete Pool Start-Up Kit that takes the guesswork out of spring prep for a clean, swim-ready pool.
  • All-in-One Convenience: No need to buy separate chemicals! Our kits treat pools from 10,000 to 30,000 gallons and include easy-to-follow instructions.
  • Ultimate Start-Up Kit Includes: Dohenys Metal Out (Stain, Rust & Scale Preventer), Spring Control, Water Clarifier, and Premium Super Shock Plusplus a FREE 10-pack of test strips!
  • Most Powerful Start-Up Kit: The Pool Master Natural Chemistry Start-Up Kit includes everything in the Ultimate Kit plus 1-quart bottles of Metal Free & Pool Magic Spring & Phos-Free for extra protection!
  • For Larger Pools: Simply purchase multiple kits to cover bigger pool sizes with the same powerful treatment!

Brand: Doheny's


Item Form: Liquid, Powder


Product Benefits: Controls Algae, Prevents Scales


UPC:


Number of Items: 6


Brand Name: Doheny's


UPC: 700721287147


Number of Items: 6


Unit Count: 1 Count


Model Number: 4896


Manufacturer Part Number: 4896


Manufacturer: Doheny's


Item Form: Liquid, Powder


Product Benefits: Controls Algae, Prevents Scales


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 7

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
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  • 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.

Top Amazon Reviews


  • Great Value. Works Great!
Size: Ultimate Kit (For Pools Up To 20,000 Gall...
I typically order my pool start up kit from Leslie's but this was cheaper, in stock and free shipping. It worked great - pool was crystal clear after going through the process and running the pump 2 days. Step by step instructions easy to follow. I will be checking in the Fall for a similar pool closing kit from Doheny's. ... show more
Reviewed in the United States on April 4, 2026 by Skeptic

  • Complete startup chemical package.
Size: Ultimate Kit (For Pools Up To 30,000 Gall...
Good product, great price. Has everything needed to open your pool get it off to a great start.
Reviewed in the United States on March 26, 2026 by Paul in MD

  • Cleared up our salt pool in 1 day
Size: Ultimate Kit (For Pools Up To 20,000 Gall...
Good value. Easy to use to start up our pool. Cleared up the water in a day!
Reviewed in the United States on April 19, 2026 by Amazon Customer

  • Good product
Size: Ultimate Kit (For Pools Up To 10,000 Gall...
Worked just like stated. Followed directions and now I have a swim ready pool.
Reviewed in the United States on April 13, 2026 by Vickie Dever

  • Works ok
Size: Ultimate Kit (For Pools Up To 10,000 Gall...
Worked ok. Water was still extremely cloudy afterwards. I’m not sure the previous owner closed the pool properly.
Reviewed in the United States on June 3, 2025 by Daniel Van Wetering

  • Used for years
Size: Ultimate Kit (For Pools Up To 10,000 Gall...
Used for years. Good price and quality.
Reviewed in the United States on April 21, 2026 by Albert B Matthews

  • Perfect for a Rookie Pool Owner!
Size: Ultimate Kit (For Pools Up To 20,000 Gall...
The media could not be loaded. This kit took all the guesswork out of opening my pool for the season. As a first-time pool owner, I wasn’t sure what products I’d need or how much, but Doheny’s Ultimate Pool Opening Kit made it easy. The instructions were straightforward, the chemicals worked exactly as promised, and I had my pool clear and swim-ready in no time. It saved me money and stress by bundling everything together, and I’m grateful for how beginner-friendly it is. Highly recommend for anyone who wants a no-fuss, effective pool opening! ... show more
Reviewed in the United States on May 3, 2025 by Belana Lobo

  • Works great, will buy again
Size: Ultimate Kit (For Pools Up To 10,000 Gall...
The algea removal works great we did you a brush against the walls.
Reviewed in the United States on April 20, 2026 by kimberly h.

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