CUSTOM 823

A vacuum filler is a type of fountain pen that uses a vacuum mechanism to draw ink into its reservoir. They usually hold more ink as they do not require a cartridge or converter. Ink is stored in the body of the pen, which is often transparent for users to see the ink level. Vacuum fillers like the CUSTOM 823 are favoured by those who write extensively and appreciate long writing sessions without frequent refills. They are great for travelling due to their high ink capacity and ability to cut ink flow from the main ink chamber when the piston is screwed down.

To clean a vacuum filler fountain pen like the CUSTOM 823, it is recommended that you flush the pen with warm water, by repeating the filling process until the water runs clear. Allow to dry overnight on an absorbent towel with the end cap open. Do not disassemble the pen to clean.

A common experience for first time users of vacuum filler fountain pens, is writing with the end cap screwed down, which obstructs ink flow. To write, it is recommended that you gently unscrew the end cap to allow a gap of 2mm for ink to flow from the main ink chamber to the feed. Once done writing, screw the end closed, taking care not to overtighten as this can damage threads or cause stress on the barrel.