Pool Mate 25-Pounds Premium Alkalinity Increaser - Stabilizes Pool pH

In this review the Pool Mate 25-Pounds Premium Alkalinity Increaser is examined for pool owners who need a reliable way to raise and stabilize total alkalinity. The bottom line: this product is for homeowners and maintenance pros who want a simple, fast-dissolving sodium bicarbonate solution that prevents pH bounce and helps protect pool surfaces and equipment. It stands out because 11 ounces raises alkalinity 10 ppm per 5,000 gallons, making dosing predictable and effective for maintaining the recommended alkalinity ranges.

Key Features

• Sodium bicarbonate formulation: A pure alkalinity increaser that raises total alkalinity without introducing unwanted chemicals, helping to keep pool water balanced.
• Predictable dosing: 11 ounces raises alkalinity 10 ppm per 5,000 gallons, which makes it straightforward to calculate additions for most residential pools.
• Stabilizes pH: By maintaining total alkalinity in the recommended range, the product helps prevent pH bounce and keeps sanitizer performance steady.
• Fast dissolving: The formula dissolves quickly in circulating water, so adjustments take effect without extended wait times.
• Equipment and surface protection: Regular use helps reduce the risk of metal corrosion, scale formation and plaster etching by keeping water chemistry more consistent.

Who It's For

This product is suited to backyard pool owners, property managers and service technicians who measure total alkalinity regularly and want a predictable, concentrated way to raise alkalinity. Its clear dosing guidance is useful for pools of many sizes and for those who prefer to add chemicals directly while the pump is running.

People who should look elsewhere include those seeking a multi-step water treatment or combined tablets that also add chlorine or algaecide; this is a single-purpose sodium bicarbonate product focused on alkalinity and pH stability rather than sanitizing or algaecide functions.

Pros & Cons

Pros

• Reliable alkalinity increase with a clear 11 oz per 5,000 gal guideline for accurate dosing.
• Easy to use and quick to dissolve, so pool chemistry responds faster than with some slow-release options.
• Helps prevent pH bounce and reduces risk of equipment corrosion and surface damage when used as directed.

Cons

• Single-purpose chemical; users must still manage chlorine and other aspects of water balance separately.

Specifications

Product name	Pool Mate 25-Pounds Premium Alkalinity Increaser
Active ingredient	100% sodium bicarbonate
Net weight	25 pounds
Dosing guideline	11 ounces raises alkalinity 10 ppm per 5,000 gallons
Recommended alkalinity ranges	Fiberglass 70-100 ppm; Marcite/Tile/Aggregate 80-120 ppm; Vinyl 120-140 ppm
Use	Add directly to pool while pump is operating

Our Verdict

The Pool Mate 25-Pounds Alkalinity Increaser is a practical, cost-effective choice for anyone who needs to raise and stabilize total alkalinity with minimal fuss. It is particularly good value for routine maintenance because of its predictable dosing and quick dissolving nature, though it should be used alongside routine sanitizer and pH checks for full water care.

Frequently Asked Questions

How much should I add to raise alkalinity?
Follow the guideline: 11 ounces will raise alkalinity 10 ppm per 5,000 gallons; calculate additions based on pool volume and retest after circulation.

Can I add it directly to the pool?
Yes, add the product directly to the pool while the pump is running so it dissolves and disperses quickly.

Will it affect chlorine levels?
The product is sodium bicarbonate and does not sanitize; chlorine should be monitored and adjusted separately to maintain proper disinfection.