When you add De powder to the skimmer do you close the main drain valve and open the skimmer valve?
Hello Wendy - You do not have to close the main drain when adding DE to the skimmer but you do need to have the skimmer valve open.
When you add De powder to the skimmer do you close the main drain valve and open the skimmer valve?
Hello Wendy - You do not have to close the main drain when adding DE to the skimmer but you do need to have the skimmer valve open.