The frequency of cleaning depends on your usage patterns and ink choices. For daily writers, a quick flush every 2-3 weeks keeps things flowing smoothly. If you only use your pen occasionally, clean it before storing for more than a month to prevent ink from drying and clogging the feed. Switching ink colours always requires cleaning to prevent muddy mixtures. Some inks are more prone to clogging than others, shimmering or heavily saturated inks need more frequent attention. You'll know it's time to clean when you notice hard starts, inconsistent flow, or scratchy writing. For regular maintenance, a simple water flush takes just 5-10 minutes. Deep cleaning with pen flush solution is needed monthly for heavy users or when troubleshooting flow issues. Seasonal cleaning is smart too, if you haven't used a pen in months, always clean before refilling. Pay attention to your pen's behaviour: smooth, consistent lines mean you're maintaining it well. Skip cleaning too long, and you might face stubborn clogs that require more aggressive methods or professional service.