How to Clean and Maintain a Fountain Pen: The Complete Guide

A fountain pen is one of the few everyday objects that actually gets better with care. Whether you own a first starter pen or a vintage piece you hunted down at a pen show, a little regular cleaning is what keeps the ink flowing smoothly and the nib writing the way it should. This guide walks you through exactly how to clean and maintain a fountain pen at home, using nothing more than water and a few simple tools.

Why cleaning your fountain pen matters

Ink dries. Left alone, it slowly builds up in the feed and around the nib, which leads to hard starts, skipping lines and scratchy writing. Regular cleaning also stops old ink mixing with a new colour, prevents clogs from pigmented and shimmering inks, and protects the pen from long-term staining.

What you will need

• A glass or small bowl of clean, lukewarm water (distilled or filtered water if you live in a hard-water area)
• A soft, lint-free cloth or paper towel
• A bulb syringe or the pen's own converter
• Optional: a drop of mild dish soap or a dedicated pen flush
• Optional: a soft toothbrush for the outside of the grip section

How often should you clean a fountain pen?

A good rule of thumb is to flush the pen every time you change ink and every one to two months during regular use. Pens filled with pigmented, waterproof or shimmering inks should be cleaned more often, ideally every time the pen runs empty. If you plan to store a pen for more than a couple of weeks, clean it first.

How to clean a fountain pen step by step

1. Remove the cartridge or converter

Unscrew the section (the grip) from the barrel. Take out the cartridge or converter and set it aside. Rinse any leftover ink from the barrel threads with a little water.

2. Rinse the nib and section

Hold the nib and section under a gentle stream of cool, running water. You will see the old ink washing out in colour. Keep going until the water begins to look clearer.

3. Flush the feed with water

Fit the converter (or a bulb syringe) onto the section, dip the nib into the water and draw it up, then push it out again. Repeat this ten to fifteen times, changing the water as it becomes coloured. The pen is clean when the water runs completely clear.

4. Soak if needed

For stubborn or dried ink, let the nib and section soak in lukewarm water for 15 to 30 minutes. Stronger dyes and pigmented inks may need an overnight soak with a drop of mild dish soap or a pen flush solution. Rinse thoroughly afterwards.

5. Dry and reassemble

Shake out excess water, wipe the nib gently with a soft cloth and stand the section nib-down on a paper towel for a few hours, or overnight. Once dry, reassemble the pen. Refill it only when you are certain no water remains, because it can dilute your ink.

Cleaning different filling systems

• Cartridge pens: Discard the empty cartridge and flush the section as above. You can also refill an empty cartridge with a syringe.
• Converter pens: Draw water in and out of the converter repeatedly. Remove it now and then to rinse it separately.
• Piston, vacuum and eyedropper pens: Fill with water through the nib and expel it repeatedly. Do not disassemble a piston mechanism unless you know what you are doing.
• Vintage pens: Use only cool water and go gently. Old sacs, celluloid and hard rubber can be fragile, so avoid soaking for long periods and skip soap or strong chemicals.

Looking after the nib

Never force a bent nib back into shape, and never press hard while writing. Wipe the nib with a soft cloth after cleaning. If the tines are misaligned or the pen is scratchy even when clean, consult a nibmeister rather than trying to fix it yourself. A light touch and good paper (smooth, fountain-pen-friendly paper) do more for a nib than any tool.

Storing and travelling with your pens

• Store pens horizontally, or nib-up, in a case or a pen cup, away from heat and direct sunlight.
• If you fly, keep pens nearly full or completely empty. Half-filled pens are the most likely to leak when cabin pressure changes.
• Put the cap on firmly and keep pens in a padded pen case to protect the finish and the nib.
• For long-term storage, always clean and dry the pen first.

Common fountain pen problems and how to fix them

Problem	Likely cause	Quick fix
Hard starts or skipping	Dried ink in the feed	Flush with water, then a soap soak
Ink flows too dry	Air bubble or clogged feed	Flush and refill; try a wetter ink
Ink flows too wet or leaks	Loose section or cracked converter	Tighten section; replace converter
Scratchy writing	Misaligned tines or rough paper	Change paper; see a nibmeister
Ink colour looks muddy	Old ink mixing with new	Full flush before changing colour

Common mistakes to avoid

• Using hot water, which can warp plastics and damage sacs.
• Using alcohol, bleach or strong solvents on resin, celluloid or ebonite.
• Leaving ink in a pen you will not use for weeks.
• Refilling before the pen is fully dry.
• Pulling the nib and feed out of the section unnecessarily.

Frequently asked questions

Can I clean a fountain pen with just water?

Yes. Plain lukewarm water is enough for routine cleaning. Add a drop of mild dish soap or a pen flush only for stubborn or pigmented inks.

How do I know when my pen is fully clean?

When the water you flush through the nib runs completely clear, with no trace of colour.

Is it OK to leave ink in my pen for months?

It is best to avoid this. Ink can dry and clog the feed. If a pen will sit unused for more than two weeks, clean it first.

Can I use tap water?

Usually yes, but in hard-water regions minerals can leave deposits. Distilled or filtered water is safer for regular flushing.

Do I need special tools?

No. A glass of water, a converter or bulb syringe and a soft cloth are all you need to start.

Keep your pens writing beautifully

Good maintenance takes just a few minutes and makes every pen more enjoyable to use. Ready to build your collection? Browse our fountain pens at THE PENS CLUB and find your next favourite writer, whether you collect from the USA, UK, India, Turkey or anywhere else in the world.