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How to Refill Your Fountain Pen with a Converter: Step-by-Step Instructions

How to Refill Your Fountain Pen with a Converter: Step-by-Step Instructions

By Galen Leather: 100% Handmade Leather Goods & Products ... | Published: 2026-09-05

Category: How-to Guides

Learn how to refill your fountain pen with a converter, from choosing the right converter to cleaning and troubleshooting common mistakes.

Quick Answer

To refill your fountain pen with a converter, first ensure your converter is compatible with your pen model, then remove the nib unit or unscrew the barrel, dip the nib into ink, and twist the converter knob to draw ink. Repeat if necessary, wipe the nib, and reassemble your pen. Practice a few times to master the technique and avoid air bubbles.

Refilling a fountain pen with a converter is a rewarding skill that saves money and reduces plastic waste. Unlike disposable cartridges, a converter lets you use any bottled ink, giving you endless color choices. Whether you're new to fountain pens or just need a refresher, this guide walks you through each step clearly.

Before you start, make sure your pen accepts a converter. Many brands, including Kilk and Nahvalur, offer converters that fit their pens. If you're unsure, check your pen's manual or the brand's website. Also, have your ink bottle ready and a paper towel or lint-free cloth for wiping.

Understanding Converters vs. Cartridges

Converters are reusable devices that fit inside your fountain pen and draw ink from a bottle. They work like a syringe, using a piston or squeeze mechanism to fill with ink. Cartridges, on the other hand, are pre-filled plastic or glass containers that you insert and replace when empty. The main advantage of a converter is the ability to use any bottled ink, which is often more economical and offers a wider range of colors and properties.

When choosing between a converter and a cartridge, consider convenience: cartridges are great for travel and quick changes, while converters are better for home or office use where you can keep a bottle. Some pens come with a converter included, but many require a separate purchase. Always check compatibility—converters are often brand-specific, though some universal options exist.

  • If you're new to fountain pens, start with a converter to explore different inks without committing to a full cartridge box.

Step-by-Step Refilling Process

Follow these steps to refill your fountain pen with a converter. Work slowly and carefully to avoid spills and air bubbles.

First, prepare your workspace: lay down a paper towel, open your ink bottle, and have your converter and pen ready. Then, remove the pen's barrel to expose the converter. If your pen uses a cartridge, remove the empty cartridge and insert the converter. Next, dip the nib fully into the ink bottle, ensuring the feed is submerged. Twist the converter's knob counterclockwise to expel any residual air, then twist clockwise to draw ink. You may need to repeat this a few times to fill completely. Finally, wipe the nib and grip section with a paper towel, reassemble the pen, and you're ready to write.

  • Always keep the nib submerged while drawing ink to avoid drawing air instead.
  • If you see air bubbles in the converter, tap the side gently or repeat the fill to ensure a full reservoir.

Common Mistakes and How to Avoid Them

One common mistake is overfilling the converter, which can cause ink to leak into the cap. To avoid this, don't force extra ink after the converter is full—stop when you see the ink reach the top. Another mistake is forgetting to clean the pen between color changes. Residual ink can mix and clog the feed. Always flush your pen with water when switching inks, especially if the new ink is a different color or brand.

Also, be gentle when twisting the converter knob. Forcing it can damage the mechanism. If you feel resistance, stop and check for blockages. Finally, don't store your pen nib-down for long periods, as this can cause ink to flow into the cap and create messes. Store it horizontally or nib-up.

  • If your pen skips after refilling, try expelling a drop of ink to ensure the feed is saturated.

Choosing the Right Ink and Converter

When selecting ink, consider whether you want shading, sheen, or shimmer. Dye-based inks like the Guitar Saishiki Fountain Pen Ink are safe for all pens and offer bright, transparent colors, but they may not shade or sheen. Pigmented or shimmer inks require more frequent cleaning. Always choose inks that are specifically labeled for fountain pens to avoid clogging.

For converters, ensure you get one that fits your pen brand. Some pens, like the Nahvalur Nautilus, use standard international converters, while others may require proprietary ones. If you're unsure, contact the manufacturer or check online forums. A well-matched converter ensures a secure fit and smooth ink flow.

  • If you're using a pen with a converter, avoid using India ink or calligraphy inks that are not designed for fountain pens.

Step-by-Step Refill Instructions

  1. Prepare your pen and workspace: Lay down a paper towel, open your ink bottle, and remove the pen barrel to expose the converter or cartridge area. Ensure your converter is clean and compatible with your pen. Checkpoint: Confirm the converter fits snugly before proceeding.
  2. Dip the nib into the ink: Submerge the entire nib and feed into the ink bottle. Make sure the feed is fully covered to avoid drawing air. Checkpoint: If you see bubbles, the nib may not be submerged deep enough.
  3. Expel air and draw ink: Twist the converter knob counterclockwise to push out air, then twist clockwise to draw ink. Repeat if necessary until the converter is mostly full. Checkpoint: Stop when ink reaches the top; don't overfill.
  4. Wipe and reassemble: Carefully remove the pen from the ink, wipe the nib and grip with a paper towel, then reassemble the barrel. Store the pen nib-up or horizontally. Checkpoint: Test write on scrap paper to ensure smooth flow.
  5. Clean up and store: Close the ink bottle tightly and rinse the nib section if you accidentally got ink on your hands. Store your pen properly to prevent drying. Checkpoint: If you won't use the pen for a while, empty the converter and clean the pen.

Product Facts

  • Guitar Saishiki Fountain Pen Ink - Yellow: The water-based dye formula is safe for all pens, nibs, and brushes, and it offers the intense brightness and transparency that's only possible with dyes. This ink is a great choice for converter refills because it's safe for your pen and provides vibrant color without clogging, making it ideal for everyday writing.
  • Nahvalur (Narwhal) Nautilus Bronze Corydoras Ebonite Fountain Pen: Introduced in the fall of 2021, the Nahvalur Nautilus series beautifully combines vintage materials with contemporary designs, reviving the use of ebonite—a classic hardened rubber material. If you own this pen, using a converter lets you enjoy the writing experience with any bottled ink, and the ebonite material is known for its warm feel and ink flow characteristics.

Refilling your fountain pen with a converter is a simple skill that opens up a world of ink choices. With practice, you'll be able to fill your pen quickly and cleanly, avoiding common pitfalls. Remember to clean your pen regularly and use quality inks to keep your writing smooth and your pen in top condition.

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