Understanding the Dr Dryden Glass Media Chart
If you're staring at a dr dryden glass media chart and feeling a bit overwhelmed by the numbers and grades, don't worry—most pool owners feel the same way the first time they switch from sand to AFM. It's not just about dumping a few bags of crushed glass into your filter and calling it a day. There is a bit of science behind how Dr. Dryden's Activated Filter Media (AFM) works, and getting the ratios right is what makes the difference between a "pretty clear" pool and one that looks like liquid crystal. ...