Skip to content
  • 🎁 Treat your loved ones with our 🎁Gift collection🎁 and snap sales!🎁
  • 🎁 Treat your loved ones with our 🎁Gift collection🎁 and snap sales!🎁
Pool Care Sales ShopPool Care Sales Shop
  • Menu
    • 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
  • Spa
    • Covers & Lifts
    • Equipment
    • Saunas
  • Equipment
    • Filters
    • Multiport Valves
  • Inground
    • Covers
    • Equipment
    • Accessories
    • Paint & Coatings
    • Liners
  • Above Ground
    • Liners
    • Covers
Home / Chemicals / Balancers
  • Doheny's Foam Away, 1 Quart -Pool Care Sales Shop 4855 a 2021
  • Champion Non-Toxic Antifreeze, 1 Gallon -Pool Care Sales Shop 5443 2020
-71%
Doheny's Calcium Hardness Reducer, 12 Quarts
Doheny's Calcium Hardness Reducer, 12 Quarts - Image 2
Doheny's Calcium Hardness Reducer, 12 Quarts -Pool Care Sales Shop 4880q12 feb2023

Doheny’s Calcium Hardness Reducer, 12 Quarts

$95.99

Clear
SKU: ZG9OZ 70089 Categories: Balancers, Chemicals
  • 7 days return and exchange
  • Safe Transactions, Always
  • Quality Meets Affordability
  • Top Quality Products
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
  • Chemicals
    • Alternatives
    • Balancers
    • Chlorine & Bromine
    • Clarifiers & Enzymes
    • Closing Kits
    • Floating Chlorinators
    • Stain Removers
    • Start-Up Kits
    • Value Packs
    • Water Testers
  • Equipment
    • Filters
      • Filter Cartridges
    • Multiport Valves
  • Inground
    • Accessories
      • Diving Boards
      • Lighting & Fountains
      • Pool Ladders
      • Pool Slides
      • Pool Steps
      • Storage & Fencing
    • Covers
      • Safety Covers
        • Accessories
        • Onground Covers
      • Solar Covers
        • Accessories
        • Alternatives
        • Rectangular Covers
        • Reels
      • Winter Covers
        • Cover Accessories
        • Rectangular Leaf Nets
        • Rectangular Mesh Covers
        • Rectangular Solid Covers
        • Winter Accessories
    • Equipment
      • Cleaners
        • Cleaner Accessories
        • Pressure Cleaners
        • Robotic Cleaners
        • Suction Cleaners
        • Vacuums
      • Filters
        • Cartridge Filters
        • DE Filters
        • Filter Media
        • Sand Filters
      • Heaters
        • Heat Pumps
        • Propane & Gas Heaters
      • Pumps
      • Salt Systems
        • Chlorine Generators
        • Replacement Cells
    • Liners
      • Accessories
    • Paint & Coatings
  • Spa
    • Covers & Lifts
      • Cover Lifts
      • Covers
    • Equipment
      • Blowers
      • Cleaners
      • Filter Cartridges
      • Heaters
      • Pumps
    • Saunas
  • Uncategorized
  • Description
  • Additional information
  • Reviews (0)

Quickly lowers hardness levels. Ideal calcium hardness range is 200-400 ppm.

Quarts

1 qt, 4 qts, 12 qts

Reviews

There are no reviews yet.

Be the first to review “Doheny’s Calcium Hardness Reducer, 12 Quarts” Cancel reply

Related products

-30%
SeaKlear Chitosan Clarifier, 1 Qt
Quick View

SeaKlear Chitosan Clarifier, 1 Qt

$17.49
-70%
Solaxx Saltron Reliant Above Ground Chlorine Generator
Quick View

Solaxx Saltron Reliant Above Ground Chlorine Generator

$99.99
-67%
Doheny's Di-Chlor/Granular Chlorine, 50 Lb
Quick View

Doheny’s Di-Chlor/Granular Chlorine, 50 Lb

$99.99
-73%
Jack's Magic The Magenta Stuff, 12 Qt
Quick View

Jack’s Magic The Magenta Stuff, 12 Qt

$97.99
-69%
SeaKlear PhosKlear 4000, 12 Qt
Quick View

SeaKlear PhosKlear 4000, 12 Qt

$96.99
-30%
Doheny's Water Clarifier, 4 Quarts
Quick View

Doheny’s Water Clarifier, 4 Quarts

$37.77
-30%
Natural Chemistry PHOSfree Extra-Strength, 3 Liter
Quick View

Natural Chemistry PHOSfree Extra-Strength, 3 Liter

$38.49
-30%
Natural Chemistry Filter Perfect, 4 Liter
Quick View

Natural Chemistry Filter Perfect, 4 Liter

$43.39
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
ABOUT US
  • About Us
  • FAQ
  • Returns & Exchanges
  • Delivery
  • Contact Us
LEGAL
  • Privacy Policy
  • Payment Method
  • Shipping Policy
  • Term and Conditions
Signup for Newsletter

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

    Copyright 2026 © www.clearaquapools.com
    • Chemicals
      • Clarifiers & Enzymes
      • Stain Removers
      • Alternatives
      • Balancers
      • Chlorine & Bromine
      • Water Testers
      • Value Packs
      • Closing Kits
      • Floating Chlorinators
      • Start-Up Kits
    • Spa
      • Covers & Lifts
      • Equipment
      • Saunas
    • Equipment
      • Filters
      • Multiport Valves
    • Inground
      • Covers
      • Equipment
      • Accessories
      • Paint & Coatings
      • Liners
    • Above Ground
      • Liners
      • Covers
    • 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.