Here's a pond clean we completed recently. As you can see the liner and bricks cleaned up nicely ready for the coming season. You may wonder why the ponds water is still green? the reason for this, is because we had to put 50% of the existing water back into the pond as the fish were going back in. If it was 100% fresh tap water the high level of chlorine wohld have been an issue. We replaced the uv lamp on the filter which will help to clear the water quality.