How to Clean out a Plastic Fish Pond

1). Catch the fish in your plastic pond using a net and place them in a bucket filled with water.
2). Place a submersible pump into the pond and pump out the water.
3). Remove pond plants and place them on the side of the pond until you finish cleaning the pond.
4). Clean the pond filter using a hose.

Spray water from the hose over the filter to clean off moss and other debris. Use the hose to pressure-clean rocks from the pond, removing any moss.
5). Clean out mud from the bottom of the pond using a bucket or pond vacuum.

Scrape all dirt and remaining debris off the bottom of the pond using a scraper or a brush.
6). Fill up the pond with regular tap water and mix a de-chlorinator to it to neutralize the chlorine, which is harmful to fish.

Replace the fish, plants and the filter back into the pond and turn the system on.