CLOROX Pool&Spa Alkalinity Increaser Granules 16 lb - Raises & Stabilizes Pool Alkalinity for Steady pH

Clorox Pool&Spa Alkalinity Increaser is a granulated treatment that raises and stabilizes total alkalinity to help keep pool pH steady.

Keeping the total alkalinity in the right range is one of the fastest ways to prevent wild pH swings that cause irritation, cloudy water, and stress on pool surfaces and equipment. This 16 lb pack of Clorox Pool&Spa alkalinity increaser dissolves quickly and is formulated for use in inground and aboveground pools, saltwater systems, and pools treated with liquid chlorine. Use it as part of a regular maintenance routine to reduce the frequency of corrective treatments and maintain comfortable swimming conditions.

How will this product help maintain balanced pH levels?

Raising total alkalinity with this product buffers the water against rapid pH shifts so you won’t need constant pH corrections. A stable alkalinity level keeps pH adjustments predictable and extends the effectiveness of sanitizers.

• Raises total alkalinity to recommended ranges to resist pH drift
• Granulated formula dissolves quickly for faster treatment
• Reduces the need for frequent acid or base additions

Will this reduce swimmer eye and skin irritation?

Keeping alkalinity in range makes pH control easier, and stable pH is closely linked to swimmer comfort. While this product does not sanitize, it supports conditions that minimize red eyes and itchy skin caused by imbalanced water chemistry.

• Helps prevent pH-driven irritation of eyes and skin
• Supports more enjoyable, comfortable swims by reducing chemical swings
• Works alongside regular sanitizer and shock programs

Can it protect pool equipment and surfaces?

Proper alkalinity helps prevent corrosive water conditions that can damage metal fittings, heaters, and pool liners. By stabilizing the water chemistry, this treatment reduces the chance of premature wear and the need for costly repairs.

• Helps prevent corrosion of pumps, heaters, and metal fixtures
• Reduces scaling and surface damage caused by unstable chemistry
• Part of a proactive maintenance plan to extend equipment life

How do I use it and when should I add it to my pool?

Test total alkalinity first and add product according to the label to reach the target range. Broadcast the granules around the deep end with the pump running, allow time to dissolve, then retest and repeat as needed. Consult the Clorox Pool app or the package directions for exact dosages based on pool volume.

• Test water before and after adding to determine dosing
• Broadcast granules with circulation running; allow full dissolution
• Use the Clorox Pool app for personalized dosage recommendations

Who is this for? Homeowners, pool service professionals, and seasonal caretakers who want a simple, effective way to stabilize alkalinity and support consistent pH control will benefit from this 16 lb Clorox Pool&Spa product. It’s suitable for new fills, routine maintenance, saltwater pools, and pools that use liquid chlorine, offering a straightforward option to keep water chemistry predictable and comfortable for swimmers.