CDU (Pleur-evac) Modification Instructions for Use with the Avthor

Tools, materials, and easy steps to get your CDU (Pleur-evac) ready for repeated use.

Modifying your CDU allows it to be drained, cleaned, and reused safely with the Avthor.

Items Needed:
•  Recommended: Safety glasses
•  Drill
•  3/8” Countersink drill bit
•  Optional: Hemostats, water-soluble lubricant
•  Black Neoprene Plugs (Suggested product can be found HERE) 

Steps:
1. Identify each of the chambers on your CDU (Pleur-evac).
        Note: Devices shipped from Avkin most often have 5 chambers.

2. Choose a location in each chamber where you can drill a ⅜” hole without damaging another area or chamber.

3. Once identified, mark each location with a permanent marker.

4. Using the drill, slowly create a starter hole. Because the plastic may be brittle, gradually widen the hole until it reaches ⅜”.

5. Remove any plastic shavings from the hole.
        Tip: Hemostats may help with this step.

6. Insert the smaller end of the neoprene plug into the hole to ensure proper fit.
        Tip: If the plug does not insert smoothly, apply a small amount of water-soluble lubricant.

7. Once all holes are plugged, perform a pressure test to verify that the device holds a seal with no air leaks.

8. All Done!