Alkalinity Increaser for Swimming Pools - Stabilizes pH and Chlorine

Our review of this alkalinity increaser finds it best for pool owners who want a simple, cost-effective way to stabilize water chemistry. The product is 100% sodium bicarbonate and is designed to raise total alkalinity to the recommended 90-120 ppm range, which helps prevent pH swings that can irritate skin or sting eyes. For someone maintaining a backyard pool in summer heat, the single biggest reason to buy is its predictable dosing: add 1.5 lbs per 10,000 gallons to raise alkalinity by 10 ppm, making follow-up adjustments straightforward.

Key Features

• 100% Sodium Bicarbonate: Provides a pure, reliable alkalinity source that dissolves to increase buffering capacity without adding contaminants.
• Stabilizes pH: Helps prevent rapid pH swings so chlorine remains effective and water chemistry stays balanced.
• Prevents irritation: Maintains alkalinity in the recommended 90-120 ppm window to reduce skin rashes and eye stinging caused by pH extremes.
• Easy dosing: The clear instruction to add 1.5 lbs per 10,000 gallons per 10 ppm makes adjustments simple and repeatable.
• Cost effective: A 50 lb package supplies multiple treatments, offering good value versus smaller or branded alternatives.

Who It's For

This product is aimed at residential pool owners and DIY pool maintainers who monitor alkalinity and pH and want a straightforward, chemical-only option to raise total alkalinity. It is especially well suited to those who need predictable dosing to correct low alkalinity during hot months or after heavy bather loads.

It is less appropriate for someone who prefers premixed or tablet balancers that automatically dissolve, or for commercial operators needing specialized blends. Also, if you require combined pH and alkalinity adjustments in one product, you may prefer a dedicated multi-chemical system.

Pros & Cons

Pros

• Pure sodium bicarbonate composition yields clear, stable water and supports chlorine effectiveness.
• Clear dosing guidance (1.5 lbs per 10,000 gallons for 10 ppm) simplifies maintenance decisions.
• Good value for money in a 50 lb size, reducing frequency of repurchase.
• Customers report improved water clarity and ease of use when applied as directed.

Cons

• Large packaging can be awkward to open for some users, which a few customers noted.
• Only raises alkalinity; users must still test and adjust pH or chlorine separately as needed.

Specifications

Product name	Alkalinity Increaser for Swimming Pools
Active ingredient	100% Sodium Bicarbonate
Package weight	50 Pounds
Recommended alkalinity range	90-120 ppm
Dosing	1.5 lbs per 10,000 gallons increases alkalinity by 10 ppm
Primary benefit	Raises alkalinity and helps balance pH and chlorine

Our Verdict

For homeowners who test and actively manage pool chemistry, this 100% sodium bicarbonate alkalinity increaser is a practical, budget-friendly choice. It delivers predictable results, supports stable pH and chlorine performance, and yields clearer water when used with regular testing. The 50 lb size offers strong value, though users should be prepared to handle the larger packaging and continue separate pH and chlorine management.

Frequently Asked Questions

How much should I add to my pool?
Add 1.5 lbs per 10,000 gallons to raise total alkalinity by about 10 ppm; repeat testing after dissolution to confirm levels.

Is this product safe for all pool types?
Yes, as a pure sodium bicarbonate it is suitable for typical residential pool surfaces and filtration systems when used according to directions.

Will this change my pH?
Raising alkalinity improves the pool's buffering capacity and can help stabilize pH, but you may still need a separate pH adjustment product for fine tuning.