How Much DE to Add? – INYOPools.com – DIY Resources
Jul 08, 2015·A DE Scoop is specially designed to measure DE powder and 1 scoop is equal to 1/2 lb. of DE powder. To determine how many scoops or coffee cans of DE your filter requires take your filter square footage and divide by 5 (this would be after a full cleaning). After back-washing you would take your filter square footage and divide by 6.