How Much D.E. Do You Put In That Filter?

In our CPO class, when we talk about D.E. filters, we stress that it’s the Diatomaceous Earth (D.E.), NOT the grids, which is the filter media.  We have a D.E. grid as a classroom prop — and we show the students that it is designed only to hold wet D.E.  It’s an unusual concept to grasp at first, but the D.E. IS the filter media […]

How Much D.E. Do You Put In That Filter?