Water features can transform your outdoor space into a serene oasis, but maintaining them requires regular upkeep. One of the most critical components of a vertical water feature is the bio filter. Over time, these filters can become clogged and less effective, leading to murky water and an unhealthy environment for aquatic life. In this comprehensive guide, we will explore the importance of bio filters, signs that it’s time for a replacement, and a step-by-step guide on how to effectively replace your vertical water feature bio filter.