In The Swim Pool Closing Kit - Winterizing Chemicals for Up to 35,000

In this review of the In The Swim Pool Closing Kit I look at who will benefit most and why it simplifies end-of-season work. The kit is aimed at pool owners who want a single package to treat and protect both above ground and in-ground pools up to 35,000 gallons, and its biggest selling point is convenience: it gathers the typical winterizing chemicals and a sorb into one box so there is less measuring, fewer separate purchases, and a clear closing routine. For owners who prefer straightforward, reliable chemistry without complicated dosing, this kit saves time and reduces guesswork.

Key Features

• Complete winterizing set: The kit contains Winterizer, Winter Stain-Away, a 3 lb chlorine free Shock-Oxidizer, a Winter Sorb and a Winter Pool Floater so you have all main treatments in one purchase.
• Large coverage: Formulated for pools up to 35,000 gallons so a single kit can support most residential pool sizes without multiple buys.
• Oil and scum control: The included Winter Sorb absorbs about 40 times its weight in oils, helping prevent waterline scum during the off season.
• Non-damaging protection: The chemicals are presented as safe to use without compromising other winterizing products or pool surfaces when used as directed.
• Time saver: Having pre-measured bottle sizes and a floater reduces the number of steps at closing, which is helpful for DIY pool owners or busy households.

Who It's For

The kit is best for residential pool owners who want an all-in-one approach to winterizing and closing, including those with above ground or in-ground pools who prefer a straightforward process. It especially fits users who want help preventing algae and waterline scum and value the added Winter Sorb for oil absorption.

Those who should look elsewhere include owners with very large commercial pools needing industrial-strength dosing or anyone who requires granular control over each active ingredient for special water chemistry needs. If a user already has a full inventory of winter chemicals they prefer, the kit may duplicate supplies.

Pros & Cons

Pros

• Convenience of an all-inclusive set makes closing faster and reduces the chance of missing a treatment.
• Effective oil control from the Winter Sorb helps keep the waterline clean during winter storage.
• Includes chlorine free Shock-Oxidizer so shock treatment won't add chlorine complications when closing.
• Appears to work well for algae prevention and clearer water at opening, according to customer feedback.

Cons

• Some customers report best results for pools around 10,000 gallons, so very large pools may require additional treatment or multiple kits.
• Kit contents are fixed; users wanting different product sizes or specific active formulations cannot customize this package.

Specifications

Brand	In The Swim
Intended pool types	Above ground and in-ground pools
Coverage	Up to 35,000 gallons
Included Winter Sorb	1 white or 2 blue sorbs (absorbs ~40x its weight)
Included chemicals	1 Qt Winterizer, 1 Qt Winter Stain-Away, 3 lb Chlorine Free Shock-Oxidizer
Other included items	1 Winter Pool Floater

Our Verdict

The In The Swim Pool Closing Kit is a practical, value-focused choice for most residential pool owners who want a simple, reliable winterizing routine. It bundles the core treatments and a sorb that reduces oils at the waterline, saving time and trips for separate chemicals. For mid-size to large backyard pools that fit the coverage guidance this kit delivers good protection and convenience at an attractive overall value.

Frequently Asked Questions

Will this kit work for both above ground and in-ground pools?
Yes, the kit is formulated for both above ground and in-ground pools and lists coverage up to 35,000 gallons.

How does the Winter Sorb help during winter?
The Winter Sorb absorbs about 40 times its weight in oils and helps prevent waterline scum from forming while the pool is closed.

Do I need extra shock or chemicals for very large pools?
Customers note excellent results for pools near 10,000 gallons; pools at the high end of the 35,000 gallon claim may require additional or multiple kits for adequate dosing.