What is the ideal range for TDS in a spa?

The ideal range for Total Dissolved Solids (TDS) in a spa is typically considered to be between 800 and 1200 parts per million (ppm). TDS includes various dissolved substances in the water, such as minerals, salts, and organic matter. Maintaining TDS within this range is crucial for several reasons.

When the TDS levels are appropriate, it helps ensure the effectiveness of spa chemicals, contributes to overall water clarity, and improves the overall bathing experience. Water with high TDS levels can lead to scaling and cloudy conditions, while water with low TDS levels may not adequately buffer pH changes, resulting in corrosion or other water quality issues.

Keeping TDS within the specified range also makes it easier to manage pH, alkalinity, and other water chemistry parameters, leading to a more enjoyable and safe experience for spa users. Monitoring and adjusting TDS is an essential part of maintaining spa water quality.