Pool Mate Alkalinity Increaser for Pools, 10 lb Sodium Bicarbonate — Fast-Dissolve to Stabilize pH and Prevent Scale

Pool Mate 10-Pounds Premium Alkalinity Increaser is a sodium bicarbonate formula designed to raise and stabilize total alkalinity in residential swimming pools quickly and predictably.

Keeping total alkalinity in range prevents pH fluctuations that can lead to scale, corrosion, and surface etching while making sanitizers work more consistently. This concentrated 10 lb product dissolves readily, is simple to apply with the pump running, and includes dose guidance based on pool volume and current alkalinity readings. Use alongside a reliable test kit and follow target ranges for your pool type to ensure balanced water: fiberglass 70–100 ppm, marcite/painted/tile/exposed aggregate 80–120 ppm, and vinyl 120–140 ppm.

How does Pool Mate alkalinity increaser help my pool water?

Alkalinity increaser acts as a buffer that reduces rapid pH swings and preserves the effectiveness of chlorine and other disinfectants. By raising total alkalinity to the recommended range, you protect plaster, metal fittings, and pool equipment from damage related to unstable chemistry.

• Stabilizes pH to reduce "pH bounce" and frequent adjustments.
• Helps maintain sanitizer performance for clearer water.
• Minimizes scale formation and metal corrosion on surfaces and equipment.
• Dissolves quickly for straightforward application.

How much product should I add and how do I apply it?

Additions are based on pool volume and the difference between current and target alkalinity. With the pump running, broadcast the measured amount directly into the deep end or near return jets for faster dispersion, then retest after several hours. The package table shows approximate dosing; for example, 11 ounces raises alkalinity about 10 ppm in 5,000 gallons.

• Always test total alkalinity before treating the pool.
• Apply with circulation running to disperse evenly.
• Wait several hours and retest before adding more product.
• Use the product’s dosing table for accurate additions by gallon capacity.

Will this product affect my pool’s pH or equipment?

Because Pool Mate uses sodium bicarbonate, it primarily raises alkalinity with minimal immediate pH change; however, correcting large alkalinity deficits can influence pH and should be followed by pH testing. Keeping alkalinity in range helps protect surfaces and metal components by preventing corrosive or scaling conditions that stress equipment.

• Designed to raise total alkalinity while limiting sudden pH swings.
• Prevents corrosion of metal fittings and damage to plaster finishes.
• Safe for all common pool types when used as directed.
• Helps reduce the need for frequent acid or base corrections.

How quickly will I see results and how often should I test?

Alkalinity changes are measurable within hours after treatment once the product disperses; retest after 4–8 hours and again 24 hours later to confirm stability. Regular testing—weekly during heavy use or after rain and chemical adjustments—keeps conditions within recommended ranges and prevents recurring problems.

• Retest 4–8 hours after application for initial results.
• Confirm stability after 24 hours before making further adjustments.
• Test weekly under normal conditions and after major events.
• Use a reliable total alkalinity test kit for accurate dosing decisions.

Who is this for: Pool Mate 10-Pounds Premium Alkalinity Increaser is ideal for residential pool owners, maintenance professionals, and property managers seeking a reliable, easy-to-use sodium bicarbonate product to stabilize total alkalinity. It’s suited for all common pool surfaces—fiberglass, plaster, tile, aggregate, and vinyl—and for anyone who wants to reduce pH fluctuations, protect equipment, and improve sanitizer efficiency without complex procedures.