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Q » What is filter bed expansion during backwash?
03 Nov, 2025
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A » Filter bed expansion during backwash refers to the process where water is pumped upward through a filter bed, causing the media (sand, anthracite, etc.) to loosen and expand. This expansion allows trapped particles and debris to be dislodged and carried away, effectively cleaning the filter. Proper expansion is crucial to prevent media loss and ensure efficient filtration upon returning to normal operation.
03 Nov, 2025
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