Storing the Launcher
Do not store the launcher while pressurized. Fire the launcher several times before removing power, or use the release button located on the pump, below the pressure gauge, to release residual pressure. Remove the pump from the launcher.
Storing the Projectiles
The balls are not stainless steel and can corrode over time when exposed to warm, humid environments. To reduce the likelihood of corrosion, keep the balls sealed in an airtight container such as a zipper closure bag. In very humid environments, consider including a desiccant packet in with the balls.
If the balls do corrode, they will need to be replaced. Do not use any kind of oil on the balls in an attempt to remove the corrosion, as oil will damage the launcher.
Cleaning the Projectiles and Launcher
Over time, the projectiles (balls) may transfer some dirt to the inner surface of the barrel. The design of the launcher depends on a close fit between the ball and the barrel, so any additional material will cause friction and launch irregularities.
Occasional cleaning of the projectiles with a clean rag and a commercial solvent such as Goo Gone® or Goof Off® will help keep dirt out of the barrel. Isopropyl alcohol is not recommended for this purpose since it will not remove wax, a common source of the dirt.
If dirt does get into the barrel, use compressed air to remove any loose debris from the chamber. If necessary, wipe the inside of the barrel with a clean rag and solvent as noted above. If the solvent does not remove enough material, wipe the inside of the barrel near the lip with 1500 grit sandpaper. It is important to use very fine sand paper; if a coarser grit is used, the inner dimension of the barrel may change too much, damaging the launcher.
The Vernier Projectile Launcher is not water resistant and should never be immersed in water or used in wet environments.
If water gets into the device, immediately disconnect any cables from the unit. Allow the device to dry thoroughly before attempting to use the device again. Do not attempt to dry using an external heat source.