Top 7 Alkalinity Decreaser for Hot Tub – Pool Chemicals & Water Testing Products

As an Amazon Associate I earn from qualifying purchases.

1. AquaAce

 #ad

PH Decreaser and Alkalinity Reducer for Hot Tubs and Spas, AquaAce Spa Hot Tub pH Down, 3 Pound, Made in USA

#ad
AquaAce #ad - Helps keep your spa water pH balanced between 7. 2-7. 8. Lowers ph and alkalinity in spa and hot tub water. Convenient quick dissolving granules. Made in the USA. Prevents scaling and cloudy water caused by high pH.
BrandAquaAce #ad
ManufacturerAquaAce #ad
Height9.5 Inches
Length3 Inches
Weight3 Pounds
Width3 Inches
Part Number43237-2
ModelAA-CH201

2. Hot Tub Things

 #ad

Hot Tub Things pH and Alkalinity Down 1.25 Pounds, Keep Your Spa Water Properly Balanced

#ad
Hot Tub Things #ad - Compare to Leisure Time Spa Down. This product lowers ph and alkalinity to obtain the proper balance! America's #1 trusted Brand of Hot Tub Chemicals. Safety tested to Assure Quality, Guaranteed Performance. Formulated exclusively for Hot Tubs And Made from the Purest Chemicals Available. Keep hot tub water in check.
BrandHot Tub Things #ad
ManufacturerHot Tub Things #ad
Height7.5 Inches
Length2.5 Inches
Weight1.31 Pounds
Width2.5 Inches
Part Number850511004215

3. BioGuard

 #ad

22 oz, SpaGuard pH Decreaser

#ad
BioGuard #ad - Protects spa and equipment due to improper pH. Balances water for bather comfort. Prevents cloudy water due to high pH.
BrandBioGuard #ad
ManufacturerBioLab #ad
Height2.5 Inches
Length8 Inches
Width2.5 Inches
Part NumberBIO42254
Model42254BIO
WarrantyReturns are not accepted on used or opened items and are subject to a 20% restocking fee.

4. Spa Essentials

 #ad

Spa Essentials 32519000 pH Decreaser Granules for Spas and Hot Tubs, 22-Ounce

#ad
Spa Essentials #ad - Protects spa and equipment due to improper pH. Balances water for bather comfort. Lowers pH and total alkalinity. Prevents cloudy water due to high pH.
BrandSpa Essentials #ad
ManufacturerRobelle Industries #ad
Height10 Inches
Length3 Inches
Weight3 Pounds
Width3 Inches
Part Number32519000
Model32519000
WarrantyReturns are not accepted on opened or used products and are subject to a 20% restocking fee

5. Spa Essentials

 #ad

2-Pound, Spa Essentials 32538000 Total Alkalinity Increaser Granules for Spas and Hot Tubs

#ad
Spa Essentials #ad - Raises alkalinity level to protect spa water from sudden changes in pH. Helps prevent staining, corrosion and pH bounce. Properly balanced spa water is a must if you want to fully enjoy your spa.
BrandSpa Essentials #ad
ManufacturerRobelle Industries #ad
Height10 Inches
Length3 Inches
Weight2 Pounds
Width3 Inches
Part Number32538000
Model32538000
WarrantyReturns are not accepted on opened or used items and are subject to a 20% restocking fee.

6. Baqua Spa

 #ad

Baqua Spa 83819 pH Decreaser Spa and Hot Tub Balancer, 20 oz

#ad
Baqua Spa #ad - Benefits: designed to lower pH and total alkalinity in spas, hot tubs, and Jacuzzis. Includes: one 16-fl oz container of BAQUA Spa Sanitizer. Features: chlorine and bromine free; contains mineral salts for a fresh scent; Sodium Bisulfate: 92%, Constituents Ineffective as Adjuvants: 8%. Compatibility: Works with all biguanide sanitizer systems. Use: part of baqua spa's bromine-free and chlorine-free maintenance product line; Use BAQUA Spa Test Strips to determine dosage.
BrandBaqua Spa #ad
ManufacturerInnovative Water Care #ad
Height2.44 Inches
Length2.44 Inches
Weight1.23 Pounds
Width6.2 Inches
Part Number83819
Model83819

7. HotTubClub

 #ad

SpaGuard Total Alkalinity Increaser, Calcium Increaser, HotTubClub Spa and Hot Tub Chemical Balancer Maintenance Kit, Contains Scum Absorber, pH Increaser and pH Decreaser 5 Items

#ad
HotTubClub #ad - Approved: spaguard spa water balancers provide the right balance for your spa, hot tub or pool, by preventing surface corrosion and equipment damage while balancing water for bather comfort.

Contains: hottubclub scum absorber, spaguard calcium Increaser 12oz, SpaGuard Total Alkalinity Increaser 2lb, spaguard ph increaser 18oz, SpaGuard pH Down 1lb. Upon request, we will send you a sample bottle and a prepaid envelope by which you can mail us a sample. Follow up: a dedicated technician will provide you with personalized instruction and support to make sure you can relax with confidence and peace of mind. Effective: tested and proven SpaGuard products that are reliable and take the hassle out of your spa or hot tub care. Support: this kit from the hot tub club includes a custom 9 point water analysis for YOUR water.
BrandHotTubClub #ad
ManufacturerHotTubClub #ad