25lbs. Diatomaceous Earth Powder
Product Overview
What pool techs reach for when charging or bumping DE filters for maximum mechanical clarity.
Celatom Diatomaceous Earth (DE) filter media provides ultra-fine mechanical pool filtration down to 2–5 microns. Made from natural fossilized diatoms, this 25 lb DE powder coats filter grids evenly to capture fine silt, body oils, pollen, and microscopic algae that standard media miss, leaving pool water polished and clear.
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Benefits & What Makes It Different
2–5 Micron Precision Filtration
Mechanically traps microscopic contaminants including algae spores, pollen, dust, and swimmer oils to maximize water clarity.
Natural Fossil-Based DE Powder
High-grade Celatom diatomite creates an even, porous cake across filter grids for reliable flow and filtration performance.
Bulk 25 lb Maintenance Bag
Sized for multiple recharges following routine backwash cycles or complete seasonal grid cleanings.
Compatibility
- Compatible with all residential and commercial DE grid filters (Hayward, Pentair, Jandy)
- Compatible with bump-style DE filter systems (e.g., Hayward Perflex)
- Not compatible with standard cartridge pool filters
When To Use This
Pro Tip
Never dump dry DE powder directly into the skimmer. Always mix it into a liquid slurry in a bucket first; dry powder can clump in plumbing lines or fail to coat grids evenly.
Common Questions & Instructions
How much 25 lbs DE filter powder do I need to recharge my filter?
Most standard residential DE filters require approximately 1 lb of powder per 10 square feet of grid surface area (e.g., 6 lbs for a 60 sq. ft. filter). After backwashing, add roughly 80% of the initial recharge dose.
Can I use Celatom DE for pools with cartridge or sand filters?
This media is designed specifically for DE grid and bump filters. While some technicians add small amounts to sand filters to boost clarity, it should not be added to standard cartridge systems as it clogs paper pleats.
What is the proper method to add DE powder to a pool filter?
Always mix the measured powder with pool water in a 5-gallon bucket to create a thin slurry before slowly pouring it into the skimmer while the pump is running on normal filter mode.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.
