I've recently added DE to my sand filter, just to try to get that polished sparkle in my pool.
When I would backwash, it is into the yard, and normally it makes my grass grow very lush.
Will the DE hurt the lawn, or be hazardous to my family and dog who frequent the yard?
It's only 1-3/4 cups. Before DE I was back washing about every 10-14 days (+15%-20%psi).