1 / 5In The Swim Chlorine-Free Pool Shock, 24 x 1-Pound Bags
In The Swim Chlorine-Free Pool Shock is a granular shock-oxidizer supplied in 24 one-pound bags. The listing describes it as a non-chlorine treatment that dissolves quickly and is compatible with several pool and spa water-treatment systems.
At a glance
- Non-chlorine shock-oxidizer intended for weekly use, according to the listing.
- Listing says it dissolves quickly without raising or altering pH levels.
- Claimed compatible with standard chlorine, salt-chlorinated, mineral, and bromine-treated pools, spas, and hot tubs.
- Described as enhancing existing chlorine effectiveness and reducing the need for additional chlorine.
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Pros and cons
Pros
- Individual one-pound bags provide portions for separate treatments.
- The claimed broad compatibility may suit owners using different pool or spa sanitation systems.
- Customer feedback reports ease of use and water clarity, although results depend on pool conditions.
Technical specifications
6 specifications| Brand | In The Swim |
|---|---|
| Model | Y8220 |
| Item form | Granular |
|---|---|
| Package size | 24 x 1 Pound |
| Number of packs | 24 |
| Weight listed | 25 pounds |
What to know before buying
Listing details to confirm
The listing says the product is chlorine-free and also says it enhances existing chlorine effectiveness. Treat it as an oxidizer rather than a replacement for the pool's required sanitizer, and follow product directions and water-care guidance.
Who is it for?
A good fit for
- Pool owners seeking a granular, non-chlorine shock-oxidizer for regular water maintenance.
- Owners of pools or spas using standard chlorine, salt, mineral, or bromine treatment who want a claimed compatible oxidizer.
Less suited to
- Buyers seeking a chlorine-based sanitizer or a product with a stated treatment dose for a particular pool volume.

Customer reviews on Amazon
- 5 stars
83% 83% - 4 stars
11% 11% - 3 stars
2% 2% - 2 stars
1% 1% - 1 star
3% 3%
Customer feedback describes the shock as effective and easy to use, with reported water clarity and odor-free operation. The supplied summary says some customers observed clear water within 36 hours without affecting chlorine levels, but that timing is an individual reported outcome, not a guaranteed result. Positive overall ratings are encouraging, while ratings also include a smaller low-star share. Pool conditions, dosing, and the existing sanitizer system affect how useful those experiences are.
Positive themes
- Customer feedback reports effectiveness, water clarity, ease of use, and odor-free operation.
- The feedback summary includes reports of clear water within 36 hours without affecting chlorine levels.
Mixed feedback
- Overall ratings skew positive, though a minority of ratings are low. The supplied feedback does not establish why those customers rated it poorly.
Frequently asked questions
Does this product contain chlorine?
The listing identifies it as chlorine-free and describes it as a shock-oxidizer. It also claims the product enhances existing chlorine effectiveness, so it should not be assumed to replace the sanitizer in a pool's treatment plan.
What water-treatment systems is it listed as compatible with?
The listing claims compatibility with standard chlorine, salt-chlorinated, mineral, and bromine-treated pools, spas, and hot tubs.
How many bags are included?
The title and package details specify 24 bags at one pound each.
Does it change pool pH?
The listing claims it dissolves quickly without raising or altering pH levels. This is a product claim, not an independently verified result.

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