"Filter square footage divided by 5 equals number of scoops or pound coffee cans of D.E. to skimmer"
Got this online...
So my really old big D.E. filter says 72 SQ. FT.
72 / 5 = 14.4
I only put 5 pounds after I hosed down grids(yuk!)
Should I add more? 14.4 pounds seems like a lot...
if it matters- whisper flow, 30k/spa