Typically in summer the filter will require cleaning once or twice a week, however every pond if different and cleaning requirement will vary depending on stocking density, exposure to sun and other variables.
Why do I need to clean my filter more often?
Too much algae. Excessive water flow and pressure. Check pump size. Overloaded with fish. Excessive feeding. Filter blocked through calcium.
How do I adjust the Double Union Ball Valve?
If you're finding it difficult to turn the valve during maintenance, you can use the video below to learn how to adjust it.