How to choose your garden pond filter?

How to choose your garden pond filter? You have finished installing your pool. You're all excited about it because you feel the bigger job is done. Not quite ! Before enjoying your work, you should succeed in finding the best filtration system for your water point.

This is a fairly important factor because it depends on the success of your aquarium project. But you ask yourself two questions: what is the role of a pond filter? And how to find the best for your pool? Let's try to answer these questions.

What is a pond filter used for?

A filtration system is essential for a water feature project in the garden. This is a technology whose main role is to keep the water in your device clean and healthy, and therefore to promote the development of its fauna and flora. A filter is effective when it manages to perform certain tasks.

Your filtration system must be able to suck up all kinds of waste present in your water point. Then, its equipment must promote the transfer of residues through the various levels. It is at this very level that the filtration of the waste takes place. Some of these residues will undergo biological decomposition and act as a support for the flora in the basin.

Organic matter is decomposed in such a way that the life of the waterhole is not threatened by toxins. This organic matter is filtered and the rest of the waste that can clog the water is eliminated. At the same time, a good filter system promotes oxygenation of the pond.
It should also be remembered that a filtration system is much more recommended for small pools. Large ponds are more likely to develop their own ecosystem to keep the water clean.

What are the different types of pond filters?

There are several types of filters that correspond to each pool. We will mainly discuss gravity filters, submerged filters for ponds, pressure filters and modular gravity filters.
Gravity filters are suitable for both medium and large pools. It is also ideal for Koi ponds. They are highly recommended for water points with high requirements. This type of filter is placed at the top of the water surface to promote the circulation and return of water to the pool without any pressure. It supports large pools that can even reach 40m3 and has enormous discharge flows. It is very economical and easy to maintain. On the other hand, because of its large size, it can be difficult to hide, regardless of the dimensions of the pond.

Submerged filters are ideal for ponds that have small dimensions, small ponds fitted out in a very small space in the garden. It is also the perfect device for decorative ponds and water points with a maximum capacity of 5000 litres. You can also use it as a supplement to a filter with a water feature for an average pool.

For small or medium-sized pools, it is advisable to use pressure filters. These are devices made in the form of a barrel that use powerful pumps. The pressure filters also support a 30m3 pool. These types of filters have the main advantage of fast and efficient water filtration.

You will have no difficulty hiding them under water, because they are quite small in size. As far as modular gravity filters are concerned, they correspond to large natural pools, bathing pools with or without a koi. These are very flexible and very effective filters.

How does a pond filter work?

Two main filtrations are involved in making the water clean (mechanical filtration and biological filtration). But there is a third filtration system that can be very useful to you, especially if you plan to eradicate algae from your pond. This is the UV filter.

What types of filtration are involved?

• Mechanical filtration: the purpose of this filtration system is to eliminate all kinds of waste clogging up the water point, and developing on the bottom of the pool. It works both inside and outside the water.

• Biological filtration: this filtration is supposed to take over when the mechanical system finishes its work. It is equipped with a mechanism that works thanks to bacteria and filter media. Setting up biological filtration requires at least three weeks. It is therefore advisable to add bacteria each time you restart it in order to reduce this time as much as possible.

• Anti-UV filtration: this is a UV ray sterilizer that can help you stop the proliferation of algae in your pool.

How does a filter work?

When you choose your filter well, filtration becomes very fast and above all simple to carry out. The operation of the filter requires the mechanical filtration system and the biological models. You currently have a good chance of coming across filters combining these two technologies. To suck the water, a pump is activated, and will serve as a conduit for the water which will be transferred to the filter located inside or outside the water point. The filters will be used to purify the water and oxygen before returning to the pond. The mechanical filter will have eliminated enough stagnant waste in the water. These residues will be retained at each level of filtration.

Following this step, the biological filter will come into play. The filter media contained in this system will promote the decomposition of waste thanks to bacteria (biocerapond, siporax, bioballs, zeolite, etc.) and will activate their compatibility with the ecosystem of your device, and the bacteria can go back to the filter.

The processed nitrites and ammonia will serve as food for the fish. It should also be added that the filtration must be running continuously, because the cycle will start from zero each time it stops.

This phenomenon is explained by the fact that the survival of bacteria depends on enough water and oxygen. And when they are deprived of it for two to three hours, they risk dying.

You can add anti-UV filtration as an additional filter to your pool. It will use its UV rays to prevent and eliminate the algae that grow in your body of water, and which may harm its ecosystem.

The difficult choice of your filtration system

A filtration system is necessary for the balance of your pond's ecosystem, but you still have to find the best one. For this best choice, some factors must be taken into account. You had to choose your filter according to the nature and type of water point. It is also important to consider the volume of your pond and the purpose of the filter. But the most important parameter remains the exact amount of water in your aquarium device.