Acrylmed CALCID MINUS Liquid for Lowering pH of Pool Water, 0.5 Litres

Acrylmed CALCID MINUS is a professional-grade liquid concentrate designed to effectively lower the pH level of swimming pool and spa water. Formulated with high-purity sulfuric acid, this 0.5-litre solution ensures precise pH adjustment, helping to maintain water balance within the recommended range of 7.0–7.4. Regular use prevents scale formation, reduces eye and skin irritation, and optimises the effectiveness of sanitisers such as chlorine, bromine, and active oxygen. Compatible with all filter types and disinfection methods, CALCID MINUS is an essential tool for pool maintenance.

Advantages

• Fast-acting liquid formula for immediate pH reduction
• Prevents calcium scaling and cloudy water
• Enhances sanitiser efficiency, reducing chemical consumption
• Suitable for both swimming pools and spas
• Child-resistant cap for safe storage

Suitable for

• Swimming pools with high pH levels (above 7.4)
• Spas and hot tubs requiring pH adjustment
• All pool types: concrete, vinyl, fibreglass, and above-ground
• Use with chlorine, bromine, or active oxygen systems

Key specifications

• Product Type: Pool Water pH Reducer
• Formulation: Liquid Concentrate
• Volume: 0.5 Litres (500 ml)
• Primary Active Ingredient: Sulfuric Acid
• Density: Approximately 1.3 g/cm³
• pH of Solution: Highly Acidic (<1)
• Packaging: Plastic Bottle with Child-Resistant Cap
• Hazard Classification: Corrosive (Causes severe skin burns and eye damage)

Recommendations

Always test pool water pH before dosing. Add the required amount directly to the pool water while the circulation system is running. Avoid adding more than 100 ml per 10 m³ of water at one time. Store in a cool, dry, well-ventilated place away from direct sunlight. Keep out of reach of children. Wear protective gloves and goggles when handling.