What is the process called that reverses water flow to remove particles from a sand filter?

Prepare for the Titan Pools Pool Operator Test with flashcards and multiple choice questions. Each question includes hints and explanations. Ace your exam!

Backwashing is the correct term for the process that reverses water flow in a sand filter to remove trapped particles and debris. During regular operation, water flows through the sand filter in one direction, allowing impurities to be captured within the sand layer. Over time, this accumulation can reduce the filter's effectiveness and require maintenance.

Backwashing involves reversing the flow of water, which flushes out the trapped contaminants by sending water back through the filter in the opposite direction. This process helps to clean the sand bed, allowing for better water filtration when the flow is restored to its normal direction.

The other options are not recognized processes in the context of swimming pool filtration. Filter processing lacks specificity regarding the operation, and layered sand removal is not a standard term used in pool maintenance. Detergent recycling does not pertain to the filtration process and is unrelated to how sand filters operate. Thus, backwashing is the definitive term used in pool maintenance to ensure effective filter performance.

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