Luma Premium Hardness Plus 5kg | Swimming Pool & Spa Water Balance

Maintain balanced water with Luma Premium Hardness Plus. Designed for swimming pools, hot tubs and spas, this calcium hardness increaser helps bring water chemistry into balance, reducing the risk of damage caused by soft water while helping protect pool surfaces, heaters and equipment.

Balanced water chemistry is essential for protecting your pool or spa and ensuring a comfortable swimming experience. When calcium hardness levels are too low, water can become aggressive, potentially affecting grout, finishes, heaters and metal components over time.

Luma Premium Hardness Plus has been carefully selected for pool owners and professionals who want reliable water balance and long-term protection for their investment.

This premium granular formula safely increases calcium hardness levels, helping to bring water into the recommended operating range. When used following accurate water testing, it supports a stable water care routine, helps reduce the effects of corrosive water conditions and protects important pool and spa components. Suitable for swimming pools, spas and hot tubs, the 5kg pack is ideal for both routine maintenance and corrective adjustments.

Key Features

• Raises calcium hardness levels
• Helps prevent aggressive water conditions
• Supports protection of pool finishes and equipment
• Promotes balanced water chemistry
• Suitable for swimming pools, spas and hot tubs
• Ideal for routine maintenance and corrective treatment

How to Use

Measure calcium hardness before treatment. Add only as stated on the product label, allow full circulation and retest before making further adjustments.