Aqua Pure Spa Hardness Increaser 500g

Aqua Pure Spa Hardness Increaser raises the hardness of spa water by increasing the concentration of dissolved calcium. Maintaining the correct calcium level helps protect concrete-based spa walls, mortar, and tile grout from pitting and erosion. Proper hardness also contributes to water clarity and ensures a comfortable spa experience.

This easy-to-use product is fully soluble and does not affect pH or total alkalinity, making it a safe and reliable choice for regular spa maintenance. Key Benefits

Increases calcium hardness to protect spa surfaces

Helps prevent scaling, cloudy water, and mineral deposits

Supports bather comfort with balanced water chemistry

Non-hazardous and safe to use

Fully soluble in spa water

Long shelf life when stored in a cool, dry place

Does not affect pH or total alkalinity

Maintain clear, safe, and comfortable spa water with Aqua Pure Spa Hardness Increaser — the simple solution for balanced water hardness and long-lasting spa surfaces.