Constantly wet soil around your pond may indicate water escaping over the pond liner, splashing outside the waterfall or stream, or leaking from plumbing connections. Low or settled liner edges are among the most common causes.
Common causes and solutions
- Low pond liner edges: Soil around the pond, stream, or waterfall may settle, allowing water to escape over the liner. Carefully lift the liner and add soil underneath to raise the edge.
- Waterfall or stream splashing: Water may splash outside the liner. Adjust surrounding rocks to redirect water back into the pond.
- Blocked water flow: Excessive plant growth, algae, or displaced rocks may redirect water over the liner. Remove obstructions and trim vegetation to restore proper water flow.
- Leaking plumbing connections: Check pipes, fittings, and pump connections for signs of leaking water.
- Skimmer leaks: Water may escape around the skimmer faceplate if it is not sealed properly.
How to identify the source of the leak
- Inspect the pond perimeter, waterfall, and stream for wet mulch, muddy soil, or unusually damp areas.
- Check for low liner edges and water flowing outside the pond.
- If the source is not visible, fill the pond to its normal operating level and turn off the pump.
- Monitor the water level for 24 hours.
- If the water level drops, the leak may be in the pond liner or another component below the waterline.
- If the water level remains stable, inspect the waterfall, stream, plumbing, and pump connections.
Important: If fish are present, maintain adequate aeration while the circulation pump is off. Do not allow the water level to drop to an unsafe level for fish or equipment.
What if the ground remains wet?
If the soil continues to stay wet after checking these areas, further inspection may be needed to locate a hidden leak or identify a drainage issue.
For additional guidance, see Aquascape's guide to finding and fixing pond leaks.