Filter for decorative pond

The smallest pond on a personal plot is a decoration and a highlight. It certainly attracts attention and induces calm contemplation and tranquility. However, the smaller the reservoir, the sooner it will become clogged, turn green and turn into a swamp. The filter helps to maintain a decent appearance to a large extent. It can be done without serious labor costs and financial losses.
The operating principle of the filter is airlift. Simple and effective. An air bubble, rising to the surface, carries a little water on it, i.e., the water travels to the surface like an elevator. Hence the name. The operation scheme is extremely simple: the filter element is foam rubber, air from the aquarium compressor is supplied through a tube into a larger diameter tube and, together with purified water, comes to the surface.

1. For the filter element I took:
- a strip of foam rubber 5 cm thick and 15 cm wide;
- nylon threads;
- a juice straw;
- wooden skewers;
- and a piece of cardboard 15x7.5 cm.

Filter for decorative pond


2. The foam rubber was marked and cut into 15 cm pieces.

For the filter element I took


3. To ensure that the inner hole is in the middle, I made a cardboard template.

cut into pieces


4. I cut off the bottom of the metal tube - it turned out to be a very convenient tool for cutting round holes in soft material.

cardboard template


5.The template allows you not to waste time on marking, and allows you to make perfect holes using the former tube.

it turned out to be a tool


6. This is what the filter blank looks like.

make perfect holes


7. There should be so many of them that the height of the filter is slightly less than the depth of the pond.

blank for filter


8. There is no need to “punch” the last piece - we will pass the juice straw through it. This will be the air duct.

filter height


9. This is what it looks like with the built-in air duct.

air duct


10. We sew the block of blanks at the corners. We tie the ends of the threads to skewers.

looks with built-in air duct


11. There is no need to trim the bottom skewers. Let's put stones on them so that the filter doesn't float up.

whatever the filter pops up


12. I closed the hole in the upper block with foam rubber cut out of it, through which I passed a piece of hose with a diameter of 10 mm. Purified water will flow through it into the pond. The thinner the hose, the higher the fountain will be.

covered it with foam rubber cut out of it


13. This is what the entire assembled structure looks like.

the entire structure is assembled


14. This aquarium compressor allows you to pump 150 liters of water per hour through the filter.

the entire structure is assembled


15. Connect the tube from the compressor to the filter air duct.

aquarium compressor


16. We fix the filter itself at the bottom of the pond.

connect to the air filter duct


17. You can decorate the filter in many ways. For the first time I covered it with an oilcloth lily.

We fix the filter at the bottom of the pond


18. This simple design allows you to maintain ideal water clarity throughout the summer season. There is no need to clean the filter during this time. I have such an assistant installed in a pond with a volume of 2.5 cubic meters. , but I think that the power is enough for a larger volume.

Filter for decorative pond

Filter for decorative pond
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