The primary reason for positioning the pressurised pond filter at least 2 metres away from the pond edge is safety. Since the filter cannot be submerged in the pond, it must be placed at a safe distance to prevent it from falling or being accidentally knocked into the water.

However, as long as the filter is securely installed and positioned safely within your garden, it can be positioned closer than the recommended 2 metres. The key consideration is ensuring the filter remains stable and does not pose a risk of falling into the pond.