HTH
Howard
My best idea for pond cleaning so far has been to make the pond as two basins divided by a bump. When full the water is above the bump and it is one pond. Pull the water down a ways and you can pump one empty with water in the other. Move the plants to one side and pump the water from the other. Take out what muck you can and then let the sun dry it. After that all you need is a broom and a dust pan.