How do I add DE powder to my pool?

Add DE powder slowly through the skimmer while the pump is running. It's best to mix it with water in a bucket first to create a 'slurry' for easier distribution.

DE Filter Powder Calculator

Get the perfect "re-charge" for your DE filter. Adding too much or too little DE can ruin your filtration; calculate the exact dose based on your filter size.

Filter Size (Sq Ft)

Maintenance Action

What is a DE Scoop?

Standard DE scoops are designed to hold exactly **1 lb of DE powder**. However, it is always a good idea to weigh your first scoop to ensure your brand of DE doesn't have a different density.

Note: Never run a DE filter without the powder. The DE is what does the filtering; without it, dirt will clog your expensive filter grids instantly.

Backwash vs. Full Cleaning

During a standard backwash, only about **80%** of the DE powder is removed. If you add a "Full Charge" after a backwash, your pressure will rise too quickly. If you have taken the filter apart and hosed off the grids, you must add the **100% Full Charge**.

Pro Tip: DE filters provide the clearest water, but they require periodic deep cleaning. Learn how to safely dissolve calcium scale from your grids with our Vinegar Filter Cleaning Guide.

Frequently Asked Questions

Can I use sand instead of DE powder?

No. Sand is too large and will not work in a DE filter system. It would likely pass right through the grids and back into your pool.

What is DE powder made of?

Diatomaceous Earth is made from the fossilized remains of tiny aquatic organisms called diatoms. Their skeletons are made of silica and act as incredible micro-filters.