What is the method of making bottom filter for ornamental fish tank?

The following detailed method.

The round washer 19 and ring washer 20 designed in this program as the water pump 10 can not deliver the water from the bottom filter cylinder 16 to the fish tank 1, avoiding the problem that the poor closing effect will lead to the decline of the water level of the fish tank as well as the rise of the water level of the bottom filter cylinder and thus the overflow.

The valve 17 allows the main inlet pipe to discharge the water, which is convenient and quick to empty the inside of the fish tank when needed, and additionally cleans up solid waste such as sand, debris, animal bones, and other solid waste deposited inside the main inlet pipe.

The combination of conical piston 6, porous plate 7, and float 9 to control the water flow switch of the pressure chamber outlet pipe 26 is stronger and more durable than the lever-type float valve, and in addition, the porous plate 7 can be easily disassembled so as to clean up the solid substances accumulated inside to avoid blockage.