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  • In The Swim Winter Ball - Pool Winterizing Chemical Stain Preventer
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In The Swim Winter Ball - Pool Winterizing Chemical Stain Preventer

8 customer reviews

Price: $24.98 & FREE Shipping
Only 5 left in stock.
Ships from and sold by Mark's Pool Store.
  • Enter your model number above to make sure this fits.
  • Maintain clear and healthy pool water all winter long, for an easy pool opening in the spring
  • Concentrated formula slowly releases in the water to reduce the chance of stains over the winter
  • Patented delivery system provides even, slow distribution of chemicals
  • Each ball will treat up to 30,000 gallons
3 new from $19.98

Shop Proven Winners Flowering Plants
$24.98 & FREE Shipping Only 5 left in stock. Ships from and sold by Mark's Pool Store.

Frequently Bought Together

In The Swim Winter Ball - Pool Winterizing Chemical Stain Preventer + In The Swim Ultimate Pool Winterizing Chemical Kit - Up to 35,000 Gallons + Winter Pool Cover Air Pillow - 4 x 8 Foot
Price for all three: $95.74

These items are shipped from and sold by different sellers.

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Product Description

Maintain clear and healthy pool water all winter long for an easy opening in the Spring! This concentrated, all-natural formula is slowly released into the water to drastically reduce the chance of stains forming over the winter. Enzymes seek out and destroy oils and scum in the pool, clarifiers coagulate suspended matter and sequestrants keep minerals and organic matter from staining your pool surfaces. Especially useful for pools using mesh winter covers. The Winter Ball's patented delivery system provides even, slow distribution of chemicals to ensure your pool is protected until Spring. Great for use in combination with other winterizing chemicals and kits. Each ball contains 16oz. and will treat up to 30,000 gallons.

Product Details

  • Shipping Information: View shipping rates and policies
  • ASIN: B002WKQ1PE
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (8 customer reviews)
  • Amazon Best Sellers Rank: #70,667 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • Product Warranty: For warranty information about this product, please click here


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Customer Reviews

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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By Edward Vespucci on August 28, 2014
Verified Purchase
used before, great item for winterizing pool.
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1 of 1 people found the following review helpful By greystoke124 on May 26, 2014
I decided to try one of these last Fall. Took the cover off the pool (14000 gal) today and it looked much better than what I've seen in the past. Algae isn't anywhere near as bad, not even close. Vacuuming and Spring clean up is much easier. Will definitely get another at closing time.
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1 of 1 people found the following review helpful By Evelyn Ruffner on November 26, 2012
Verified Purchase
Used this last year and bought it again this year I also bought the spring pill its pink I had no alge problems at all this past year. I will probably keep buying this product.
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1 of 1 people found the following review helpful By Eileen on November 23, 2013
Verified Purchase
I used it last year and it did an excellent job on my 16' round intex pool. It was crystal clear in the spring. I decided to get one again this year.
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