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5 Best Alkalinity Increaser For Pools of 2026

Last Updated - 2026/05/16

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Aqua Coastal

Alkalinity Increaser for Pools & Spas (8Kg)

Aqua Coastal

CA$59.99

More Details
Main highlights
- Use when total alkalinity drops below 80 ppm.
- Then add to your pool or spa water. Add about 2-6 Tablespoons at a time, and about 6 hours apart
- Makes your pH and chlorine levels easier to control.
- Granular. Sodium Bicarbonate.
- Calculate how much Total Alkalinity Booster is needed (on the back of bottle) & Mix with water
CA$59.99
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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Pool Supplies Canada

Alkajuster Alkalinity Increaser for Pool Water – 8 Kg Granular Formula – Raises Total Alkalinity to Stabilize pH – Easy-to-Use Soluble Buffer for Balanced Pool Chemistry (Pack of 1)

Pool Supplies Canada

CA$49.99

More Details
Main highlights
- 🇨🇦 MADE IN CANADA: Pool Supplies Canada is a Canadian company and all our products are proudly MADE IN CANADA! Trust a Canadian brand created for Canadian families 🇨🇦
- ✅PREVENTS CORROSION & CHEMICAL LOSS: When alkalinity is too low, pH swings can damage pool equipment and reduce the effectiveness of chlorine. Alkajuster protects your investment by maintaining a buffer that shields your system and ensures sanitizers perform at full strength
- ✅IDEAL FOR SALTWATER & CHLORINE POOLS: Whether you own a saltwater pool or a traditional chlorine system, this 8 kg alkalinity increaser is safe and effective across all pool types. It’s the perfect addition to your weekly maintenance routine for consistent water performance
- ✅FAST-DISSOLVING AND EASY TO APPLY: Alkajuster comes in a fully soluble granular form that can be sprinkled directly into your pool water—no pre-mixing or complicated dosing required. It dissolves quickly and circulates evenly, making application simple and stress-free
- ✅ENHANCES COMFORT & WATER CLARITY: Balanced alkalinity isn’t just about chemistry—it’s about the experience. With stable pH levels, your pool water becomes gentler on skin and eyes, and your water stays clearer, longer. Enjoy a pool that looks better and feels better
- ✅BALANCES WATER FOR STABLE CHEMISTRY: Total alkalinity is the backbone of pool water balance. This fast-acting buffer raises alkalinity to the ideal 100–120 ppm range, helping to stabilize pH levels and prevent sudden fluctuations that can throw off your entire treatment plan
CA$49.99
3
40% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BioGuard
40% Off

BioGuard Balance Pak 100 (4.25kg) to Raise Total Alkalinity (SKU 4507)

BioGuard

CA$29.94

CA$49.99
(40% Off)

More Details
Main highlights
- Increases alkalinity levels without causing pH "bounce"
- Ensures bather comfort by stabilizing pH levels
- Elongates the life of your liner, heater, and other metal pool parts susceptible to corrosion
- Can be used on all pool types and surfaces
- Available in a 10 kg resealable pail
CA$29.94
CA$49.99 (40% Off)
4
Best Value
46% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BioGuard
46% Off

BioGuard Balance Pak 100 (4.25kg) to Raise Total Alkalinity (SKU 4507)

BioGuard

CA$26.95

CA$49.99
(46% Off)

More Details
Main highlights
- Increases alkalinity levels without causing pH "bounce"
- Ensures bather comfort by stabilizing pH levels
- Elongates the life of your liner, heater, and other metal pool parts susceptible to corrosion
- Can be used on all pool types and surfaces
- Available in a 10 kg resealable pail
CA$26.95
CA$49.99 (46% Off)
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ecoone

Alkalinity Plus by EcoOne | Natural Water pH Increaser for Hot Tub Application | Chlorine-Free, Phosphate-Free Hot Tub pH Increaser | Increases Alkalinity & Neutralizes pH to Prevent Buildup, 2 Lbs

ecoone

CA$27.47

More Details
Main highlights
- SKIN-FRIENDLY FORMULA - Our natural, biodegradable alkaline increaser for hot tubs is 100% free of chlorine, phosphates, and other harsh chemicals that can irritate the skin and eyes. Step into your spa and experience the soothing comfort of perfectly balanced, neutral water with this hot tub pH increaser!
- RAISE YOUR SPA’S ALKALINITY NATURALLY - EcoOne spa Alkalinity Plus is a natural granular powder that works to gently increase your spa’s alkalinity. Unlike other hot tub pH increaser brands, ours contains just sodium bicarbonate, so you’ll never have to worry about chemical residues or strong odors.
- HOW TO USE ALKALINE INCREASER FOR HOT TUBS - Test the total alkalinity level. If it’s lower than 75 ppm, add 2 to 3 tablespoons of EcoOne Spa Alkalinity Plus directly to spa water. Allow water to circulate for several hours and retest. Repeat until total alkalinity is between 80 and 120 ppm.
- CRYSTAL CLEAR WATER - This total alkalinity increaser for hot tub use from EcoOne makes it easy to clear up cloudy water due to high acidity levels, so you can keep your spa looking its best. EcoOne spa chemicals cleanse, balance, and safeguard your spa’s plumbing, heating, and filtration systems.
- ABOUT THE BRAND - EcoOne spa chemicals include chlorinating tablets, water balancers, and spa cleaners for a full line of earth-friendly spa care products. Designed to keep your spa sparkling and safe for everyone—even those with sensitive skin.
CA$27.47

5 Best Alkalinity Increaser For Pools of 2026

Alkalinity Increaser for Pools & Spas (8Kg)

Alkajuster Alkalinity Increaser for Pool Water – 8 Kg Granular Formula – Raises Total Alkalinity to Stabilize pH – Easy-to-Use Soluble Buffer for Balanced Pool Chemistry (Pack of 1)

BioGuard Balance Pak 100 (4.25kg) to Raise Total Alkalinity (SKU 4507)

BioGuard Balance Pak 100 (4.25kg) to Raise Total Alkalinity (SKU 4507)

Alkalinity Plus by EcoOne | Natural Water pH Increaser for Hot Tub Application | Chlorine-Free, Phosphate-Free Hot Tub pH Increaser | Increases Alkalinity & Neutralizes pH to Prevent Buildup, 2 Lbs

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Alkalinity Plus by EcoOne | Natural Water pH Increaser for Hot Tub Application | Chlorine-Free, Phosphate-Free Hot Tub pH Increaser | Increases Alkalinity & Neutralizes pH to Prevent Buildup, 2 Lbs

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