To add diatomaceous earth (DE) to your pool, you need to measure the correct amount, create a slurry, and then introduce it to your filter. Always consult your filter's manufacturer instructions for specific guidance.
Steps to Add DE to Your Pool Filter
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Determine the Correct Amount of DE:
- Refer to your pool filter's manual for the recommended amount of DE. This is crucial to avoid over or under-charging your filter. Typically, the required amount is measured in pounds or cups.
- A general guideline is approximately 1 pound of DE per square foot of filter area. However, always verify this with your specific filter's instructions.
- Example: If your filter is 24 square feet, you might need around 24 pounds of DE.
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Prepare a DE Slurry:
- In a clean bucket, mix the measured DE with water to create a thin, pourable slurry. Aim for a consistency similar to milk or thin pancake batter.
- Avoid adding DE directly to the skimmer without pre-mixing, as this can cause clumping and inefficient filtering.
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Add the DE Slurry to Your Pool:
- With the pool pump running, slowly pour the DE slurry into the skimmer. This allows the DE to be drawn into the filter.
- Pour the slurry gradually to prevent airlock or overloading the filter.
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Monitor Filter Pressure:
- After adding the DE, observe the pressure gauge on your filter. Note the initial pressure reading immediately after adding the DE. This will be your baseline pressure.
- As the filter collects debris, the pressure will gradually increase.
- When the pressure increases by 8-10 PSI (pounds per square inch) above the initial reading, it's time to backwash your filter to remove the accumulated dirt and DE. After backwashing, you'll need to repeat this entire process, adding more DE to re-coat the filter grids.
Important Considerations:
- Safety: Wear a dust mask when handling DE powder, as it can be irritating to the lungs.
- Backwashing: Familiarize yourself with the backwashing procedure for your specific filter model.
- Environmental Concerns: Be mindful of local regulations regarding the disposal of backwash water containing DE.
- Filter Type: These instructions primarily apply to DE filters. Sand and cartridge filters use different cleaning methods.
By following these steps, you can effectively add DE to your pool filter and maintain clean and clear pool water. Remember, your filter's manual is the ultimate guide.
