Shop How to Raise Water Hardness in Hot Tub

Sponsored
About our ads
$108.00
Morton Water Softener Salt - 40 Lb Bag - ULINE - Qty Of 6
Uline
$108.00
Morton Water Softener Salt - 40 Lb Bag - ULINE - Qty Of 6
Uline
$58.99
Spa Marvel Water Treatment & Conditioner 16 Fl Oz
Amazon.com
1K+
Free shipping
$58.99
Spa Marvel Water Treatment & Conditioner 16 Fl Oz
Amazon.com
1K+
$266.99
$349.99
Hydria Clear 1 Inch Bromine Tabs | 50 Pound Bucket | Spa And Pool Supplies
Amazon.com
762
Free shipping
23% off
$266.99
$349.99
Hydria Clear 1 Inch Bromine Tabs | 50 Pound Bucket | Spa And Pool Supplies
Amazon.com
762
$24.65
Leisure Time 22339-02BX Spa Up, 2-Pounds, 2-Pack
Amazon.com
2K+
$24.65
Leisure Time 22339-02BX Spa Up, 2-Pounds, 2-Pack
Amazon.com
2K+
$81.19
Spachoice 3.5-Pounds Premium Brominating Tabs Sanitizer For Spas, Bromine Tablets For Spa Hot Tub, Made In USA
Amazon.com
957
Free shipping
$81.19
Spachoice 3.5-Pounds Premium Brominating Tabs Sanitizer For Spas, Bromine Tablets For Spa Hot Tub, Made In USA
Amazon.com
957
$8.99
$12.99
Leisure Time 22339A Spa Up, Ph Increaser For Hot Tubs, Prevents Corrosion And Equipment Damage, Compatible With Various Sanitizers, 2 Lbs
Amazon.com
6K+
30% off
$8.99
$12.99
Leisure Time 22339A Spa Up, Ph Increaser For Hot Tubs, Prevents Corrosion And Equipment Damage, Compatible With Various Sanitizers, 2 Lbs
Amazon.com
6K+
$58.99
Proteam Gentle Spa Hot Tub Water Softener & Conditioner - Softens Hard Water, Prevents Scum Lines & Skin Irritation, Borate Ph Stabilizer - Fresh
Amazon.com
32
Free shipping
$58.99
Proteam Gentle Spa Hot Tub Water Softener & Conditioner - Softens Hard Water, Prevents Scum Lines & Skin Irritation, Borate Ph Stabilizer - Fresh
Amazon.com
32
$15.99
$19.99
Aquadoc Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser & Calcium Booster For Hot Tubs
Amazon.com
472
20% off
$15.99
$19.99
Aquadoc Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser & Calcium Booster For Hot Tubs
Amazon.com
472
$319.99
Freshwater Salt System Cartridge - Water Treatment Replacement Cartridge For Spas & Hot Tubs - Easy Maintenance - Supports Natural-Feeling Water To
Amazon.com
55
Free shipping
$319.99
Freshwater Salt System Cartridge - Water Treatment Replacement Cartridge For Spas & Hot Tubs - Easy Maintenance - Supports Natural-Feeling Water To
Amazon.com
55
$23.00
Spaguard Spa Stain/Scale Control - Pint
Amazon.com
567
$23.00
Spaguard Spa Stain/Scale Control - Pint
Amazon.com
567
$16.81
Leisure Time D Metal Gon For Spas And Hot Tubs, Powerful Water Treatment Solution, 16 Ounce
Amazon.com
2K+
$16.81
Leisure Time D Metal Gon For Spas And Hot Tubs, Powerful Water Treatment Solution, 16 Ounce
Amazon.com
2K+
$26.07
Spachoice 1-Quart 2-Pack Premium Increase Calcium, Liquid Calcium Hardness Increaser Hot Tub, Made In USA
Amazon.com
780
$26.07
Spachoice 1-Quart 2-Pack Premium Increase Calcium, Liquid Calcium Hardness Increaser Hot Tub, Made In USA
Amazon.com
780
$59.99
Pool Season Calcium Increaser, 25 Lb Box 47251470
PoolZoom.com
$59.99
Pool Season Calcium Increaser, 25 Lb Box 47251470
PoolZoom.com
$5.69
$19.99
Aquadoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser Calcium Booster For Hot Tubs, Spa Calcium Increaser Hot Tub Water Hardener Spa Chemicals
kriblink.com
71% off
$5.69
$19.99
Aquadoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser Calcium Booster For Hot Tubs, Spa Calcium Increaser Hot Tub Water Hardener Spa Chemicals
kriblink.com
$24.07
Leisure Time Spa Up, 2 Lb 22339A
PoolZoom.com
6K+
$24.07
Leisure Time Spa Up, 2 Lb 22339A
PoolZoom.com
6K+
$16.50
Leisure Time 1Qt Enzyme SGQ
PoolZoom.com
1
$16.50
Leisure Time 1Qt Enzyme SGQ
PoolZoom.com
1
$65.32
Taylor Water Technologies - Hardness Standard Reagent Gallon -
Pool Spa Supplies
$65.32
Taylor Water Technologies - Hardness Standard Reagent Gallon -
Pool Spa Supplies
$30.00
Leisure Time 45410A PH Balance Plus 3Lb Bottle
Pool Warehouse
346
$30.00
Leisure Time 45410A PH Balance Plus 3Lb Bottle
Pool Warehouse
346
$59.99
O-ACE-Sis Granule Calcium Hardness Increaser 25 Lb
Ace Hardware
2
$59.99
O-ACE-Sis Granule Calcium Hardness Increaser 25 Lb
Ace Hardware
2
$43.00
Aquafinesse - Water Care System, Startup Kit - 956306
Pool Spa Supplies
22
$43.00
Aquafinesse - Water Care System, Startup Kit - 956306
Pool Spa Supplies
22
$34.99
API EZSTC1 EZ Spa Total Care 1Lb Bottle
Pool Warehouse
3
$34.99
API EZSTC1 EZ Spa Total Care 1Lb Bottle
Pool Warehouse
3
$37.49
Doheny's Calcium Hardness Reducer, 1 Quart For Pools
Doheny's
$37.49
Doheny's Calcium Hardness Reducer, 1 Quart For Pools
Doheny's
$90.43
Leisure Time Spa Minerals 23434 (Pack Of 3)
eBay
4
Free shipping
$90.43
Leisure Time Spa Minerals 23434 (Pack Of 3)
eBay
4
$6.77
Spapure - Hardness Increaser, 1 Lb - C002729-CS20B6
Pool Spa Supplies
1
$6.77
Spapure - Hardness Increaser, 1 Lb - C002729-CS20B6
Pool Spa Supplies
1
$26.97
$40.99
82148 Sirona Spa Calcium Booster Granular 1LB - 3 Bottles
Best Pool Shop
34% off
$26.97
$40.99
82148 Sirona Spa Calcium Booster Granular 1LB - 3 Bottles
Best Pool Shop
$16.97
$27.99
ALK Leisure Time Spa Alkalinity Increaser 2Lb.
Best Pool Shop
39% off
$16.97
$27.99
ALK Leisure Time Spa Alkalinity Increaser 2Lb.
Best Pool Shop
$21.97
$34.99
82148 Sirona Spa Calcium Booster Granular 1LB - 2 Bottles
Best Pool Shop
37% off
$21.97
$34.99
82148 Sirona Spa Calcium Booster Granular 1LB - 2 Bottles
Best Pool Shop
$35.99
Leisure Time Spa Minerals - 1 Cartridge
Pool Geek
190
$35.99
Leisure Time Spa Minerals - 1 Cartridge
Pool Geek
190
$7.15
HTH Pool Care Hardness Up 4 Lb. Calcium Hardness Increaser
iverybers.com
164
Free shipping
$7.15
HTH Pool Care Hardness Up 4 Lb. Calcium Hardness Increaser
iverybers.com
164
$39.09
Taylor Calcium Hardness One Drop Test Kit, K-1770 By EZ Pool & Spa Supply
EZ Pool & Spa Supply
1
$39.09
Taylor Calcium Hardness One Drop Test Kit, K-1770 By EZ Pool & Spa Supply
EZ Pool & Spa Supply
1
$11.82
Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 Lb Bag
Walmart
137
$11.82
Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 Lb Bag
Walmart
137
$12.99
Spaguard Spa Calcium Hardness Increaser - 12 Oz
Pool Geek
855
$12.99
Spaguard Spa Calcium Hardness Increaser - 12 Oz
Pool Geek
855
$59.99
Api Ez3 Spa Care Kit - Complete 3-Step Hot Tub Water Care System,
eBay
Free shipping
$59.99
Api Ez3 Spa Care Kit - Complete 3-Step Hot Tub Water Care System,
eBay
Free shipping
$9.99
Spapure Alkalinity Increaser - 1 Lb
Pool Geek
2
$9.99
Spapure Alkalinity Increaser - 1 Lb
Pool Geek
2
$38.97
Spaguard Total Alkalinity Increaser Balancer For Spas And Hot Tubs 2
eBay
6
Free shipping
$38.97
Spaguard Total Alkalinity Increaser Balancer For Spas And Hot Tubs 2
eBay
6
$98.64
$384.28
Leisure Time B-12 Defender For Spas And Hot Tubs, 1-Quart, 12-Pack
responsiml.com
74% off
$98.64
$384.28
Leisure Time B-12 Defender For Spas And Hot Tubs, 1-Quart, 12-Pack
responsiml.com
How to Raise Calcium Hardness in Water
How to Raise Calcium Hardness in Water
Apr 24, 2022
orendatech.com
Calcium Hardness In Your Hot Tub: Everything You Need To Know – Pool Care Guy
Calcium Hardness In Your Hot Tub: Everything You Need To Know – P…
Apr 6, 2018
poolcareguy.com
A Beginner’s Guide To Hot Tub Chemistry
A Beginner’s Guide To Hot Tub Chemistry
Apr 13, 2018
poolcareguy.com
How to Balance the Calcium Hardness Level in Your Pool
How to Balance the Calcium Hardness Level in Your Pool
Jul 28, 2020
swimuniversity.com
How to Balance Your Hot Tub’s Calcium Hardness
1:52
How to Balance Your Hot Tub’s Calcium Hardness
929 viewsJan 9, 2025
YouTubeCaldera Spas
Hard water crystal removal hot tub safely and easy calcium build-up
2:27
Hard water crystal removal hot tub safely and easy calcium build-up
20.4K viewsJun 5, 2017
YouTubeWayne Smith
Scaling or Calcium in the hot tub what to do
1:05
Scaling or Calcium in the hot tub what to do
53K viewsApr 13, 2018
YouTubeO-Care
9:12
HOW to raise or lower CALCIUM HARDNESS in your HOT TUB or S…
18.6K viewsFeb 16, 2022
YouTubeAtlanta Hot Tub Center / Hot Tub University
Steps to Hot Tub Water Chemistry
Jan 12, 2019
masterspas.com
Hot Tub Water Testing: The Complete Guide
Sep 2, 2012
swimuniversity.com
1:18
Hot Tub Chemistry 101: What, When, and How to Add Chemicals
Apr 3, 2020
swimuniversity.com
How to Raise Your Calcium Hardness
34.3K viewsDec 5, 2017
YouTubejacuzziofficial
2:21
Decreasing Calcium Hardness
16.4K viewsJun 6, 2019
YouTubeHot Spring Spas & Wellness Products – Austral…
2:55
How to Decrease Calcium Hardness in a Hot Tub? - LearnToDIY360.com
108 viewsNov 2, 2024
YouTubeLearnToDIY360
1:16
How to Use Hardness Plus for Calcium Hardness
7.3K viewsSep 29, 2021
YouTubePool and Spa
2:33
How to Treat Hard & Well Water in your Hot Tub
59.4K viewsMar 30, 2017
YouTubeAmerican Sale
Decreasing Calcium Hardness With Your Hot Spring Spa ACE System
29.7K viewsMay 23, 2016
YouTubeHot Spring Spas
7:55
HOT TUB CHEMISTRY 101: How to Keep Your Water Balanced
197.1K viewsApr 10, 2020
YouTubeSwim University
How to Lower Alkalinity in a Hot Tub (with Video)
Feb 6, 2021
swimuniversity.com
2:57
Hardness (Total) Test Kit - TK3051-Z
11.4K viewsAug 2, 2011
YouTubeAquaPhoenixSci
9:04
A Beginner's Guide to Calcium Hardness in Your Pool
14.8K viewsJun 30, 2023
YouTubePoolonomics
0:56
Is Water Hardness Important in a Hot Tub? #shorts
4.3K viewsOct 28, 2022
YouTubeHot Tub Owner HQ
2:46
Pool Calcium Hardness Low - How To Increase It?
10K viewsOct 24, 2022
YouTubePool Advisor Australia
1:27
What Is Calcium Hardness In Hot Tubs?
7.5K viewsJul 15, 2014
YouTubeSwimming Pool Steve
5:14
Hot Tub Water Care Basics
21.9K viewsAug 17, 2018
YouTubeAllSpa
5:33
How To Balance The CALCIUM HARDNESS In Your POOL
198.2K viewsJul 23, 2020
YouTubeSwim University
2:10
How To Adjust CALCIUM HARDNESS In Pool Water
7.5K viewsMar 11, 2024
YouTubeSwimming Pool Steve
0:51
Hot Tub Calcium Hardness DOESN’T MATTER? 🤔
7.5K viewsMar 6, 2024
YouTubeSwim University
3:40
WHAT SHOULD My WATER SOFTENER HARDNESS be Set At?
255.4K viewsDec 4, 2021
YouTubeWater eStore
6:47
How to Balance CALCIUM HARDNESS (and What Pools Nee…
25K views6 months ago
YouTubeSwim University
See more videos
Static thumbnail place holder

Shop How to Raise Water Hardness in Hot Tub

Sponsored
About our ads
$108.00
Morton Water Softener Salt - 40 Lb Bag - ULINE - Qty Of 6
Uline
$108.00
Morton Water Softener Salt - 40 Lb Bag - ULINE - Qty Of 6
Uline
$58.99
Spa Marvel Water Treatment & Conditioner 16 Fl Oz
Amazon.com
1K+
Free shipping
$58.99
Spa Marvel Water Treatment & Conditioner 16 Fl Oz
Amazon.com
1K+
$266.99
$349.99
Hydria Clear 1 Inch Bromine Tabs | 50 Pound Bucket | Spa And Pool Supplies
Amazon.com
762
Free shipping
23% off
$266.99
$349.99
Hydria Clear 1 Inch Bromine Tabs | 50 Pound Bucket | Spa And Pool Supplies
Amazon.com
762
$24.65
Leisure Time 22339-02BX Spa Up, 2-Pounds, 2-Pack
Amazon.com
2K+
$24.65
Leisure Time 22339-02BX Spa Up, 2-Pounds, 2-Pack
Amazon.com
2K+
$81.19
Spachoice 3.5-Pounds Premium Brominating Tabs Sanitizer For Spas, Bromine Tablets For Spa Hot Tub, Made In USA
Amazon.com
957
Free shipping
$81.19
Spachoice 3.5-Pounds Premium Brominating Tabs Sanitizer For Spas, Bromine Tablets For Spa Hot Tub, Made In USA
Amazon.com
957
$8.99
$12.99
Leisure Time 22339A Spa Up, Ph Increaser For Hot Tubs, Prevents Corrosion And Equipment Damage, Compatible With Various Sanitizers, 2 Lbs
Amazon.com
6K+
30% off
$8.99
$12.99
Leisure Time 22339A Spa Up, Ph Increaser For Hot Tubs, Prevents Corrosion And Equipment Damage, Compatible With Various Sanitizers, 2 Lbs
Amazon.com
6K+
$58.99
Proteam Gentle Spa Hot Tub Water Softener & Conditioner - Softens Hard Water, Prevents Scum Lines & Skin Irritation, Borate Ph Stabilizer - Fresh
Amazon.com
32
Free shipping
$58.99
Proteam Gentle Spa Hot Tub Water Softener & Conditioner - Softens Hard Water, Prevents Scum Lines & Skin Irritation, Borate Ph Stabilizer - Fresh
Amazon.com
32
$15.99
$19.99
Aquadoc Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser & Calcium Booster For Hot Tubs
Amazon.com
472
20% off
$15.99
$19.99
Aquadoc Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser & Calcium Booster For Hot Tubs
Amazon.com
472
$319.99
Freshwater Salt System Cartridge - Water Treatment Replacement Cartridge For Spas & Hot Tubs - Easy Maintenance - Supports Natural-Feeling Water To
Amazon.com
55
Free shipping
$319.99
Freshwater Salt System Cartridge - Water Treatment Replacement Cartridge For Spas & Hot Tubs - Easy Maintenance - Supports Natural-Feeling Water To
Amazon.com
55
$23.00
Spaguard Spa Stain/Scale Control - Pint
Amazon.com
567
$23.00
Spaguard Spa Stain/Scale Control - Pint
Amazon.com
567
$16.81
Leisure Time D Metal Gon For Spas And Hot Tubs, Powerful Water Treatment Solution, 16 Ounce
Amazon.com
2K+
$16.81
Leisure Time D Metal Gon For Spas And Hot Tubs, Powerful Water Treatment Solution, 16 Ounce
Amazon.com
2K+
$26.07
Spachoice 1-Quart 2-Pack Premium Increase Calcium, Liquid Calcium Hardness Increaser Hot Tub, Made In USA
Amazon.com
780
$26.07
Spachoice 1-Quart 2-Pack Premium Increase Calcium, Liquid Calcium Hardness Increaser Hot Tub, Made In USA
Amazon.com
780
$59.99
Pool Season Calcium Increaser, 25 Lb Box 47251470
PoolZoom.com
$59.99
Pool Season Calcium Increaser, 25 Lb Box 47251470
PoolZoom.com
$5.69
$19.99
Aquadoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser Calcium Booster For Hot Tubs, Spa Calcium Increaser Hot Tub Water Hardener Spa Chemicals
kriblink.com
71% off
$5.69
$19.99
Aquadoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely On, Calcium Increaser Spa Hardness Increaser Calcium Booster For Hot Tubs, Spa Calcium Increaser Hot Tub Water Hardener Spa Chemicals
kriblink.com
$24.07
Leisure Time Spa Up, 2 Lb 22339A
PoolZoom.com
6K+
$24.07
Leisure Time Spa Up, 2 Lb 22339A
PoolZoom.com
6K+
$16.50
Leisure Time 1Qt Enzyme SGQ
PoolZoom.com
1
$16.50
Leisure Time 1Qt Enzyme SGQ
PoolZoom.com
1
$65.32
Taylor Water Technologies - Hardness Standard Reagent Gallon -
Pool Spa Supplies
$65.32
Taylor Water Technologies - Hardness Standard Reagent Gallon -
Pool Spa Supplies
$30.00
Leisure Time 45410A PH Balance Plus 3Lb Bottle
Pool Warehouse
346
$30.00
Leisure Time 45410A PH Balance Plus 3Lb Bottle
Pool Warehouse
346