If your pond water is brown, we would recommend taking a look at the following causes:
- Make sure that that the pond has not become overstocked due to growing fish.
- Ensure that excess build up of silt or sediment has been cleaned out.
- Check that soil is not entering from the sides of the pond. Certain aquatic plant soils are very fine and can work their way out of planting baskets. Remove the plants for a while to see if this is what is causing the problem.
- Check the foams in the filter for shrinkage, as this can cause dirty water to bypass them – change them if necessary.
- Hungry fish can disturb the sediment on the floor of the pond, as they root around for food. Consider if they are underfed.
- If the pump is sat on the floor of the pond, in sediment, then this will be continually distributed through the pond and filter. Raise the pump off the floor of the pond by approximately 6-8 inches (15-20cm) This will ensure the pump does not pump sediment.