How do you keep snakes out of sump pump underground PVC pipe?

To keep snakes out of a sump pump's underground PVC pipe, you can install a mesh screen or a fine grate at the entrance of the pipe to prevent their entry. Additionally, ensuring that the area around the sump pump is clear of debris and vegetation can reduce habitats that attract snakes. Regular maintenance and inspection of the system will also help identify any entry points that may need sealing. If needed, consider using snake repellents in the surrounding area.