How to use the ZOEN filter

Watch this short video to see how easy it is to use the ZOEN Filter in its four operational modes.

Travel Pack

as a drinking straw
  1. Attach one tube to the entry end of the filter and another tube to the exit end, indicated by the arrows
  2. Suck the water up through the filter and in the direction of the arrows, directly into the mouth
with a water bottle
  1. Fill the bottle or collapsible canteen with dirty water
  2. Attach the filter using the screw thread
  3. Squeeze the bottle to force water through the filter directly into the mouth or into a clean container

Set aside part of the filtered water and use this with the syringe for the backwash filter cleaning process.

Relief Pack

  1. Use the 13/16” (20 mm) drill bit to drill a hole 1½” (4 cm) from the bottom of the bucket
  2. Remove any burrs around the hole with sandpaper or a knife, being careful not to change the shape of the hole
  3. Insert elbow attachment with the seal ring on the INSIDE of the bucket, then screw the hex nut firmly into place

Community Pack

  • Follow the instructions for RELIEF PACK
  1. Use the 13/16” (20 mm) drill bit to drill two holes:
    •   HOLE 1:  2-3″ (5-8 cm) from the top
    •   HOLE 2:  1 ½” (4 cm) from the bottom
  2. Insert the spigot into the bottom hole with a seal ring on each side of the bucket wall, then screw the hex nut firmly onto the spigot shaft
  3. Insert the elbow attachment into the top hole with the seal ring on the INSIDE of the bucket, then screw the hex nut firmly into place
  4. Turn the elbow attachments as needed to make sure the tubes do not kink

NOTE: The dirty water bucket must always be above the clean water bucket.

TIP: To get water to flow through the filter faster, use the longer tubing to separate the buckets by 3-4 feet (1-1.5 meters).

Backwashing the filter

Back-wash the filter regularly to maintain good flow rate and prolong the life of your filter.

  1. Disconnect any tubes, bottles or buckets from the filter (be sure to clamp any tubes that are still connected to a bucket)
  2. Fill the syringe with CLEAN water and squirt the water firmly into the EXIT end of the filter, opposite to the usual flow direction, allowing it to discharge onto the ground
  3. Repeat 6-8 times or until the discharge water is clear

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Use anywhere as a straw, with the squeeze bag or a plastic bottle

Drink directly from a water source,with the included sterilizable silicone straw

Attach to a bucket of dirty water and let gravity filter the water into a clean bottle or receptacle


Attach to a cistern, faucet, or other water supply to supply clean water for the family or community


Filter from a dirty water bucket into a clean water bucket in the field or at home