Go to the store where you bought the pens or any good store that specializes in drafting or engineering supplies. They sell special washing jars with a tray inside and handle that comes out through the center of the cover. You can also buy cleaner to put in the jar there. OR, you can go to the grocery store and buy detergent ammonia. Mix the detergent/ammonia with water in the cleaning jar let them soak awhile and work the plunger handle up and down. When clean wash in clean water and dry. Some people just leave the tips on the tray until ready to use. |