Skip to content
  • 💳 Get the latest styles for less with our big sale on new arrivals! 💳
  • 💳 Get the latest styles for less with our big sale on new arrivals! 💳
Swimline ShopSwimline Shop
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Chemicals
    • Clarifiers & Enzymes
    • Stain Removers
    • Alternatives
    • Balancers
    • Chlorine & Bromine
    • Water Testers
    • Value Packs
    • Closing Kits
    • Floating Chlorinators
    • Start-Up Kits
  • Saunas
  • Filters
    • Filter Cartridges
  • Accessories
    • Toys Games & Floats
    • Pool Maintenance
    • Solar Accessories
    • Thermometers
    • Alarms & Timers
  • Above Ground
    • Liners
    • Covers
  • Pool Maintenance
  • Water Testers
Chemicals / Closing Kits
Sale!
Doheny's Winter Pill

Doheny’s Winter Pill

$25.49 Original price was: $25.49.$17.84Current price is: $17.84.

Buy Now
SKU: ZG9OZ 15743 Categories: Chemicals, Closing Kits
  • Protecting Your Payment Information
  • The quality you expect, the service you deserve.
  • The best quality products, always.
  • Fast reliable delivery options
Browse
  • Above Ground
    • Covers
      • Winter Covers
        • Cover Accessories
        • Cover Pumps
    • Liners
      • Accessories
      • Beaded Liners
      • J-Hook Unibead Liners
      • Overlap Expandable Liners
      • Overlap Liners
      • Rectangular Flat Bottom Liners
  • Accessories
    • Alarms & Timers
    • Pool Maintenance
      • Brushes
      • Hoses
      • Rakes & Skimmers
      • Vacuum Heads
    • Solar Accessories
    • Thermometers
    • Toys Games & Floats
      • Lounges, Floats & Games
  • Chemicals
    • Alternatives
    • Balancers
    • Chlorine & Bromine
    • Clarifiers & Enzymes
    • Closing Kits
    • Floating Chlorinators
    • Stain Removers
    • Start-Up Kits
    • Value Packs
    • Water Testers
  • Filters
    • Filter Cartridges
  • Spa
    • Covers & Lifts
      • Cover Lifts
      • Covers
    • Equipment
      • Blowers
      • Cleaners
      • Filter Cartridges
      • Heaters
      • Pumps
    • Saunas
  • Uncategorized
  • Description
  • Reviews (0)

Pool Winterizer in a Ball! Makes Spring Opening Less Work!

Doheny’s Winter Pill is an easy-to-use solution to make spring pool opening fast and easy! Just one pill treats up to 30,000 gallons of water for up to six months. Its all-in-one 4-part blend includes a scale inhibitor to prevent the build-up of scale and a stain inhibitor to prevent iron, copper and manganese staining. The enzyme-enhanced Winter Pill naturally destroys organics, preventing a water ring. It enhances filter performance and improves sanitizer efficiency.

The Winter Pill floats under your winter cover all season and works well with mesh safety covers. The patented six month delivery system is safe for all surfaces and filters and is saltwater compatible. The Winter Pill may be used alone or with winter pool closing kits.

Try the Winter Pill when you close your pool this year!

Reviews

There are no reviews yet.

Be the first to review “Doheny’s Winter Pill” Cancel reply

Related products

Sale!
Natural Chemistry Pool Magic, 1 Liter
Quick View

Chemicals

Natural Chemistry Pool Magic, 1 Liter

$22.99 Original price was: $22.99.$16.09Current price is: $16.09.
Sale!
Jack's Magic Stain Solution #1 Value Pack For Salt Water Pools
Quick View

Chemicals

Jack’s Magic Stain Solution #1 Value Pack For Salt Water Pools

$104.99 Original price was: $104.99.$73.49Current price is: $73.49.
Sale!
AquaChek Select Refill (50) For Free Chlorine, Total Chlorine, Total Bromine, Total Alkalinity, Total Hardness, Cyanuric Acid (Stabilizer) & PH, 1 Pack
Quick View

Chemicals

AquaChek Select Refill (50) For Free Chlorine, Total Chlorine, Total Bromine, Total Alkalinity, Total Hardness, Cyanuric Acid (Stabilizer) & PH, 1 Pack

$22.99 Original price was: $22.99.$16.09Current price is: $16.09.
Sale!
Doheny's Stain Remover, 2 Lb
Quick View

Chemicals

Doheny’s Stain Remover, 2 Lb

$31.04 Original price was: $31.04.$21.73Current price is: $21.73.
Sale!
Natural Chemistry Pool First Aid, 12 Liter
Quick View

Chemicals

Natural Chemistry Pool First Aid, 12 Liter

$107.99 Original price was: $107.99.$75.59Current price is: $75.59.
Sale!
Natural Chemistry Pool Perfect + PHOSfree, (2) 2 Liter
Quick View

Chemicals

Natural Chemistry Pool Perfect + PHOSfree, (2) 2 Liter

$61.99 Original price was: $61.99.$43.39Current price is: $43.39.
Sale!
Jack's Magic The Copper & Scale Stuff, 10 Lb
Quick View

Chemicals

Jack’s Magic The Copper & Scale Stuff, 10 Lb

$109.99 Original price was: $109.99.$76.99Current price is: $76.99.
Sale!
Natural Chemistry SCALEfree, 12 Liter
Quick View

Alternatives

Natural Chemistry SCALEfree, 12 Liter

$160.74 Original price was: $160.74.$98.99Current price is: $98.99.
Products
  • Doheny's Skimmer System, Wide-Mouth Doheny's Skimmer System, Wide-Mouth $49.99 Original price was: $49.99.$34.99Current price is: $34.99.
  • Doheny's Vinyl Liner Repair Kit Doheny's Vinyl Liner Repair Kit $14.99 Original price was: $14.99.$10.49Current price is: $10.49.
LEGAL
  • Privacy Policy
  • Shipping Policy
  • FAQ
  • Returns & Exchanges
  • Term and Conditions
CUSTOMER SERVICE
  • My account
  • Delivery
  • Payment Method
  • Contact Us
  • About Us
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

[contact-form-7 id="15"]
Copyright 2025 © www.poolsgearsupply.com
  • Chemicals
    • Clarifiers & Enzymes
    • Stain Removers
    • Alternatives
    • Balancers
    • Chlorine & Bromine
    • Water Testers
    • Value Packs
    • Closing Kits
    • Floating Chlorinators
    • Start-Up Kits
  • Saunas
  • Filters
    • Filter Cartridges
  • Accessories
    • Toys Games & Floats
    • Pool Maintenance
    • Solar Accessories
    • Thermometers
    • Alarms & Timers
  • Above Ground
    • Liners
    • Covers
  • Pool Maintenance
  • Water Testers
  • Login

Login

Lost your password?

Register

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.