How do I add DE powder to my filter?

It's recommended to pre-mix the D.E. powder in a bucket of water prior to adding it to the filter.

Once mixed, the slurry should be added slowly into the pool's skimmer while the filter is running and set in normal operation mode.

The D.E. powder can also be added directly to the skimmer and without pre-mixing; but be sure to add it slowly with the pump running and ensure that all material works its way through the skimmer.

As a note of safety, always ensure you do not directly inhale any powder during mixing or application.