I read your article regarding adding DE powder to a sand filter. I followed your instructions and adding powder 1/4 cuo at a time until the psi went up 1psi. You article mentioned that the psi may go up rapidily the first 25 hours after the first time that I add the DE and thats exactly what happened. After 12 hours it went from 19psi to 30psi.
I assume that i should backwash. But my question is - Do I add the DE powder again after backwashing? Should i add the DE powder after every backwash?
I assume that i should backwash. But my question is - Do I add the DE powder again after backwashing? Should i add the DE powder after every backwash?