Mystery Overnight Water Loss: Wind, Wildlife, or Pump Quirks?

A small pond loses most water overnight via a fountain pump that sprays outside the liner. The large pond nearby doesn't. This happens intermittently, first time in 3 years. A fish spitter also failed.

Likely Culprits

• Nighttime wind shifting spray pattern—common in open areas.
• Animal interference (raccoon, cat) redirecting the nozzle.
• Pump vibration slowly rotating the fountain head.

Fixes

1. Lower the fountain height or switch to a bubbler/nozzle with a wider, lower pattern.
2. Secure the pump and nozzle firmly; add a windbreak (plants, fence panel).
3. Install a float valve auto-fill as backup.
4. Trail camera to catch animal visitors.

Wind is the top suspect. Adjust the spray to stay inside the liner even in a breeze.