The ponds were lined with concrete in 1968 to stop them drying out. They are periodically emptied to clean and repair. The last time they were fully emptied was in 1996. As a record, here’s a brief video uploaded to the Secret Carshalton YouTube channel. Claim this banner space for your local business   Claim … Continue reading 🎥 Video: Carshalton Ponds completely empty during October 2023