Filter Bed Expansion

04/29/26

“Why do filter beds expand when they’re cleaned?”

Filter beds are wonderful contraptions for cleaning water and wastewater. However, over time, particles will build up and clog the filter, decreasing performance. People may clean it using backwashing. However, this backwashing will lead to Filter Bed Expansion as the filter media is pushed away from its compacted form.

Image credit: https://encrypted-tbn0.gstatic.com/