What should I do if my wildlife pond is drying out?

A wildlife pond can often be left to fall or dry naturally. Freshwater Habitats Trust says many freshwater plants and animals are adapted to periodic drying, so topping up is a choice rather than an automatic rescue.

If you want to retain water for drinking wildlife or for plants that cannot tolerate drying, use collected rainwater where possible. Tap water can add nutrients that encourage algae. Add only what is needed and avoid a sudden change in water temperature.

First decide whether the loss is weather or a leak. Hot, windy conditions increase evaporation. If the level keeps falling to the same point, inspect the liner edge and turn off a waterfall or stream temporarily when it is safe to do so. Follow the equipment maker's instructions and do not handle a faulty electrical pump beside water.

A fish pond needs a different response because low water can reduce the volume and oxygen available to fish. Seek specialist help if fish are distressed.

Check the level methodically

Mark the waterline on a dry day and note the weather. Inspect the exposed liner, folds, pipe entries and the bank below a waterfall for persistent wet patches. If equipment can be isolated safely, pause one water feature at a time and follow the maker's instructions. A level that stops falling at the same height can point towards a fault at that height. Do not climb into a slippery pond or handle electrical equipment while it is energised. A registered electrician should deal with a suspected supply fault.

Sources

• Freshwater Habitats Trust: frequently asked questions — accessed 14 November 2026.
• RHS: pond care — accessed 14 November 2026.

More from Pond Setup Guide

Read topping up a pond and finding a leaking pond. Rainwater and liner underlay are defined in the pond glossary.