A pool filtration system should filter the entire volume of water a minimum of every:

The principle behind pool filtration systems is to ensure water quality and safety by effectively removing contaminants and maintaining clear water. The standard for many public pool systems is to filter the entire volume of water at least every 6 to 8 hours. This timeframe is sufficient to remove impurities such as debris, pathogens, and chemical imbalances that could affect the health and safety of swimmers.

Filtering the entire volume of water every 6 to 8 hours allows for effective circulation and filtration, which is crucial for maintaining proper sanitary conditions. If the water is not filtered within this timeframe, it increases the risk of algae growth, bacterial contamination, and a decline in water clarity, which can pose health hazards to pool users.

In contrast, longer filtration intervals, such as 10 to 12 hours or more, may not effectively maintain water quality, especially in high-usage facilities or during peak swimming times. Therefore, being able to filter the pool water every 6 to 8 hours ensures that the pool remains safe and inviting for users.