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How to Remove & Replace Media in an Everfilt® Sand Media Filter

  • Writer: Everfilt® Admin
    Everfilt® Admin
  • 3 days ago
  • 3 min read

How to Remove & Replace Media in an Everfilt® Sand Media Filter

(Applies to Everfilt® SM, SSM, SK-SM, & SK-SSM Series)


Routine media replacement is essential for maintaining filtration efficiency, protecting downstream equipment, and ensuring long-term performance of your Everfilt® sand media filter. Whether you’re working on a vertical tank, skid-mounted system, or a custom configuration, the process is straightforward with the right tools and a little preparation.


Note: Different Everfilt® models may vary slightly in layout or access points. When in doubt, contact the manufacturer for support: everfilt@everfilt.com | 951-360-8380

Tools & Supplies You’ll Need


  • Socket or wrench set

  • Flathead screwdriver or pry bar

  • Shovel or vacuum for media removal

  • New media (sand, gravel, or specialty blend per system spec)

  • Clean bucket, bin, or wheelbarrow

  • Garden hose or wash-down sprayer

  • PPE: gloves, eye protection, dust mask


Safety First


Before you begin, ensure the system is safe to service:


  1. Shut off power to the filtration system.

  2. Close all inlet & outlet valves.

  3. Depressurize the tank.


    • Open the drain valve & allow all internal pressure to release.


    • Some units drain through the discharge manifold; others require opening the media drain port at the bottom of each tank.


*Never open any covers or fittings until the tank is fully depressurized.


Step-by-Step Instructions


1. Drain the Tank


  • Open the drain valve at the bottom of the filter.

  • Allow all water to fully drain.

  • Leave the drain valve open during servicing to prevent residual water buildup.


2. Remove the Top Cover or Manway


Most Everfilt® tanks include a top-mounted media access port.


  • Loosen & remove the grooved coupling or flanged lid.

  • Take off the cover or manway.

  • Remove any risers, spray assemblies, or internal components as needed.


    • Pro tip: Snap a few photos to simplify reassembly later.


3. Remove the Old Media


  • Use a vacuum or scoop to extract the existing sand & gravel.


  • Avoid contacting or damaging the underdrain/lateral system, as it’s critical for proper flow distribution.


  • Dispose of old media following local regulations, as it may contain captured contaminants from system operation.


How to Remove & Replace Media in an Everfilt® Sand Media Filter

4. Inspect the Interior


Before refilling, conduct a quick health check:


  • Look for corrosion, coating wear, or rust.

  • Inspect underdrains/laterals for cracks or broken components.

  • Check welds, fittings, & interior hardware.

  • Rinse the tank interior with a low-pressure hose to clear debris.


5. Refill with New Media


Verify the correct media type and quantity using your Everfilt® system manual or specification sheet.


Typical Media Layers:


  • Bottom gravel support bed:


    • Usually ¾" gravel

    • Refer to manual for correct volume or weight


  • Top sand or specialty media layer:


    • Graded silica sand (typically 0.45–0.55 mm)

    • Depth varies by tank size; confirm if unsure


Filling Tips:


  • Add media slowly to keep layers even.

  • Maintain appropriate freeboard, typically 30%.

    • This often means stopping 2–3 inches below the top weld seam.

  • Do not overfill; media needs room to expand during backwash cycles.


6. Reassemble the Tank


  • Reinstall all internal components in the order they were removed.

  • Replace the manway lid/cover & tighten evenly.

  • Make sure all gaskets are clean, seated properly, & free of debris to prevent leaks.


7. Flush & Restart the System


  1. Close the drain valve.

  2. Gradually refill the tank with clean water; slow filling helps the media settle & reduces trapped air.

  3. Run a full backwash cycle to clear fine particles & dust.

  4. Follow with a rinse cycle until the discharge water is clear.

  5. Restore the system to normal operation & check for leaks or irregular flow.


Pro Tips from Everfilt®


  • Label hoses & fittings during disassembly; this cuts reassembly time in half.

  • If media becomes hard or clumped, check system flow & verify backwash rates meet Everfilt® specifications.

  • Everfilt® recommends full media replacement every 3–5 years, depending on water quality & loading.

  • For systems with minor media loss, adding 2 inches of new sand per year can help maintain performance.

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