The replacement of the refill is an important step in keeping the pen last for life. Below I will explain how to replace the water refill step by step based on your question.
First, prepare the replacement refills and pens you need. Make sure that the refills you purchase match the model and size of the pen you are replacing, so that it does not become unattachable or unusable.
Next, open the cap or sleeve of the pen to expose the nib. Some pens may have a rotating tip that needs to be rotated clockwise or counterclockwise to open. Other pens may require a slight pull-out of the nib.
In the nib part of the pen, you can see the original refill. Depending on the design of the pen, some may have metal clips or buttons to hold the refill. Remove these fixing parts so that the old water refills can be removed.
When the old water refill has been removed, take out the new water refill that matches it. Typically, a new water refill should have a protective cover to ensure its quality and cleanliness. Remove the protective cover from the refill before installing a new water refill.
Insert the new refill into the nib part of the pen, making sure that the insertion is in the correct direction and that the nib is fully inside the pen. Gently push and rotate the new water refill until it is securely seated in place.
Once you have completed the above steps, check that the new water refill is installed correctly. Close or rotate the nib portion of the pen to secure the position of the refill. Test whether the new water refill writes smoothly and smoothly.
It is important to note that each brand and model of pen may have different ways and steps to replace. Therefore, it is advisable to refer to the relevant product insert or seek the manufacturer's guidance before replacing the refills yourself.