All water features; ALL water features require some sort of maintenance. Ponds and water gardens require typically (4) services per year. The Spring cleanout, Mid-Summer Check Up, Winterization, and Mid-Winter Check-Up are the minimum a pond owner should be doing to maintain their water feature. Maintenance requirements vary depending on many things, for example; filter type, fish load, plant load, pond size, location, weather, etc. For more specific information call FSA to speak to one of our service technicians.