What condition might strongly suggest that a pool needs to be drained and refilled?

Extremely high Total Dissolved Solids (TDS) levels are a critical indicator that a pool may need to be drained and refilled. TDS refers to the total amount of dissolved substances, including minerals, salts, and other organic materials, in the water. When TDS levels become excessively high, they can lead to several issues in pool maintenance and water quality.

High TDS can diminish the effectiveness of disinfectants, making it challenging to maintain proper sanitation levels, which can expose swimmers to potential health risks. Consequently, the buildup of dissolved substances can cause cloudiness, scaling in the plumbing and filter systems, and a negative impact on water chemistry.

Draining and refilling the pool is often the most effective method to lower TDS levels, as it replaces the old water with fresh water that has a much lower concentration of dissolved solids. This process is essential for restoring the quality of the pool water, ensuring it remains safe for use, and facilitating smoother maintenance routines.

While conditions like low chemical levels, cloudy water, and algae growth can signal issues that need addressing, they do not always necessitate draining and refilling the pool. Proper chemical adjustments can usually resolve low chemical levels or cloudy water, and algae growth can typically be managed