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A clean spa and hot tub with balanced pH levels are all you need for a safe and fun family time. Get your spa Alkalinity up to help get proper water balance. Container of total spa Alkalinity Increaser! The alkalinity level of your spa is essential to water balance.
We stand by our quality. Alkalinity up you can rely on: using alkalinity booster helps you safeguard your Hot tubs and Spas. It might prevent corrosion and etching on metal and plaster. Hot tub alkalinity increaser from the usa - choosing aquaDoc means choosing consistent quality. We do the hard work so that you can use our Alkaline chemical and see the AquaDoc magic happen.

Creates more comfortable water: Keeps the pH levels in range, which helps protect against skin and eye irritation.

Effective: tested and proven SpaGuard products that are reliable and take the hassle out of your spa or hot tub care.


Easy to use: pour the alkalinity booster into a chemical-safe container and mix with at least nine parts of water to dissolve. It helps balance chemical levels which reduces skin & eye irritation. Repeat as needed until alkalinity is within the desired range. Test the water again after 3-4 hours.
We bring convenience back to standard maintenance and safely re-balance your waters with proven results of Sodium Bicarbonate powder. Safe formula: our alkalinity increaser is made with safe and soluble Sodium Bicarbonate. The alkalinity range for pools and spas should be between 80 - 120 ppm, metal corrosion, which can lead to issues such as Chlorine inefficiency, pool staining, ideally at 100 ppm. This powdered formula is easy to measure and mess-free, unlike liquid alkalinity-increasing chemicals.

1. SpaGuard
#ad
SpaGuard Spa Total Alkalinity, 2 Lb
#adSpaGuard #ad - Helps prevent equipment and spa surface corrosion and damage. Per 100 gallons raises total alkalinity 25ppm. 1 tbs. Eliminates "pH bounce".More information #ad
Brand | SpaGuard #ad |
Manufacturer | SpaGuard #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 2 Pounds |
Width | 3 Inches |
Part Number | 42275BIO |
Model | BIO42275 |
Warranty | Returns are not accepted on opened or used products and are subject to a 20% restocking fee |
More information #ad
2. SpaChoice
#ad
2-Pound, Spa Choice 472-3-4021 Alkalinity Up Hot Tub Chemical for Spas
#adSpaChoice #ad - Downloadable user guide Available Under Product Information: Technical Specifications. Ph levels are easier to control with a corrected total alkalinity.More information #ad
Alkalinity acts as a buffer, improving the ability of your pool water to resist pH fluctuations. Maintaining a desirable total alkalinity reading is critical to holding chlorine residuals.Brand | SpaChoice #ad |
Manufacturer | Robelle Industries #ad |
Height | 10 Inches |
Length | 3 Inches |
Weight | 2.2 Pounds |
Width | 3 Inches |
Part Number | 472-3-4021 |
Model | 472-3-4021 |
More information #ad
3. MAV AquaDoc
#ad
AquaDoc Total Alkalinity Increaser for Hot Tub to Keep Alkalinity Up for Spas, 2lbs., Alkalinity Booster Chemical for Hot Tub & Spa pH Balance, Get Fresh Water pH Balance & Bring Alkalinity Up
#adMAV AquaDoc #ad - Whenever the ph levels of your water become unstable, with our hot tub alkalinity increaser. It helps in reducing skin and eye irritation due to chemical imbalance levels. Spa alkalinity boost you need: our alkaline booster helps manage spa ph fluctuations.A clean spa and hot tub with balanced pH levels are all you need for a safe and fun family time. Get your spa Alkalinity up to help get proper water balance. Container of total spa Alkalinity Increaser! The alkalinity level of your spa is essential to water balance.
More information #ad
Need to increase alkalinity levels? use our 2 lbs. A balance in the pH helps prevent damage & corrosion. Raise alkalinity in spa: with aquadoc alkalinity booster, add our product to raise it to the optimal range, balancing your spa water is quick and easy. We stand by our quality. Alkalinity up you can rely on: using alkalinity booster helps you safeguard your Hot tubs and Spas. It might prevent corrosion and etching on metal and plaster. Hot tub alkalinity increaser from the usa - choosing aquaDoc means choosing consistent quality. We do the hard work so that you can use our Alkaline chemical and see the AquaDoc magic happen.
Brand | MAV AquaDoc #ad |
Manufacturer | MAV AquaDoc #ad |
More information #ad
4. HTH
#ad
HTH Spa Care Alkalinity Up, Spa & Hot Tub Chemical Raises Alkalinity, 1.25 lbs, Stabilizes pH Fluctuation
#adHTH #ad - Benefit: easily raise the total alkalinity levels in your spa water to ensure it remains clear, clean, and healthy. Compatible with all sanitizers: HTH Spa Alkalinity Up works great with bromine, chlorine and biguanide systems.Creates more comfortable water: Keeps the pH levels in range, which helps protect against skin and eye irritation.
More information #ad
You're all clear with hth: for best results, use HTH Spa Test Strips twice a week to test, balance and maintain total alkalinity levels between 80 and 120 ppm. Prolongs the life of your spa: Helps prevent damage to spa surfaces and equipment pumps, filters, and heaters.Brand | HTH #ad |
Manufacturer | Innovative Water Care #ad |
Height | 7.86 Inches |
Length | 2.53 Inches |
Weight | 1.3 Pounds |
Width | 2.53 Inches |
Part Number | 86131 |
Model | 86131 |
More information #ad
5. LeisureQuip
#ad
SpaGuard Spa Total Alkalinity Increaser 2 lb 3 Pack with LeisureQuip ScumBoat Scum Absorber and LeisureQuip Hot Tub Care Log Book
#adLeisureQuip #ad - Contains: 3x spaguard total alkalinity increaser 2lb, LeisureQuip ScumBoat Floating Scum Absorber, and LeisureQuip Hot Tub Care Log Book. Leisurequip scumboat scum absorber absorbs up to 40 times its weight in oils, scum, grime, and other debris to keep hot tub clean and prevent waterline build-up.Effective: tested and proven SpaGuard products that are reliable and take the hassle out of your spa or hot tub care.
More information #ad
Spaguard total alkalinity increaser increases the total alkalinity of your hot tub to protect your equipment from corrosion and minimize pH bounce. Leisurequip hot tub care log book & maintenance Guide includes weekly maintenance checklists, chemical dosage charts, troubleshooting tips, and a log to keep track of your spa maintenance records. Includes 3 bottles of SpaGuard Total Alkalinity Increaser 2lb.Brand | LeisureQuip #ad |
Manufacturer | LeisureQuip #ad |
Height | 9 Inches |
Length | 3 Inches |
Width | 6 Inches |
Part Number | 42630BIO |
Model | 42630BIO |
More information #ad
6. Spa Essentials
#ad
Spa Essentials 32538000 Total Alkalinity Increaser Granules for Spas and Hot Tubs, 2-Pound
#adSpa Essentials #ad - Raises alkalinity level to protect spa water from sudden changes in pH. Properly balanced spa water is a must if you want to fully enjoy your spa. Helps prevent staining, corrosion and pH bounce.More information #ad
Brand | Spa Essentials #ad |
Manufacturer | Robelle Industries #ad |
Height | 10 Inches |
Length | 3 Inches |
Weight | 3 Pounds |
Width | 3 Inches |
Part Number | 32538000 |
Model | 32538000 |
Warranty | Returns are not accepted on opened or used items and are subject to a 20% restocking fee. |
More information #ad
7. GRITT COMMERCIAL
#ad
Powder Formula, and Scaling, Keeps up Pool Health, Reduces Equipment Wear & Tear, 5 lbs, Staining, Gritt Commercial Alkalinity Increaser Plus for Swimming Pool, Spa, & Hot Tub Water
#adGRITT COMMERCIAL #ad - Add our alkalinity increaser at a rate of 1½ pounds per 10, 000 gallons. The circulation system should be running. Alkalinity increaser: low alkalinity fosters volatilely & rapidly changing ph levels of the pool, and scaling. Pour the mixture around the perimeter of the pool/spa.Easy to use: pour the alkalinity booster into a chemical-safe container and mix with at least nine parts of water to dissolve. It helps balance chemical levels which reduces skin & eye irritation. Repeat as needed until alkalinity is within the desired range. Test the water again after 3-4 hours.
More information #ad
Our alkalinity increaser is compatible with all sanitizing systems and helps stop corrosion of pool equipment like vinyl liners, fiberglass & metal surfaces, etching of plaster, and pool discoloration. Improves pool health: stay assured that your pool health stays intact with Gritt Commercial. We bring convenience back to standard maintenance and safely re-balance your waters with proven results of Sodium Bicarbonate powder. Safe formula: our alkalinity increaser is made with safe and soluble Sodium Bicarbonate. The alkalinity range for pools and spas should be between 80 - 120 ppm, metal corrosion, which can lead to issues such as Chlorine inefficiency, pool staining, ideally at 100 ppm. This powdered formula is easy to measure and mess-free, unlike liquid alkalinity-increasing chemicals.
Brand | GRITT COMMERCIAL #ad |
Manufacturer | GRITT COMMERCIAL #ad |
Height | 12 Inches |
Length | 7 Inches |
Weight | 5 Pounds |
Width | 7 Inches |
Part Number | CHE14 |
Model | CHE14 |
More information #ad
8. SpaChoice
#ad
SpaChoice 472-3-5051 Hot Tub Alkalinity Increaser, 1-Pack
#adSpaChoice #ad - Maintaining a desirable total alkalinity reading is critical to holding chlorine residuals. Ph levels are easier to control with a corrected total alkalinity.More information #ad
Alkalinity acts as a buffer, improving the ability of your pool water to resist pH fluctuations. Downloadable user guide Available Under Product Information: Technical Specifications.Brand | SpaChoice #ad |
Manufacturer | Robelle Industries #ad |
Height | 10 Inches |
Length | 6 Inches |
Weight | 0 Pounds |
Width | 3 Inches |
Part Number | 472-3-5051 |
Model | 472-3-5051 |
More information #ad