How to filter your garden pond?
Jeremy, construction site supervisor, Cardiff118 guides
- Mechanical filtration
- Biological Filtration
- UV lamp
Why filter a garden pond
The various garden pond filtration systems
The basic assumption is that any filtration system will manipulate the two following parameters:
- The level of oxygen, which largerly depends on the organic matter in the water. The higher the level of oxygen is, the better the quality of the water will be. On the other hand, a pond with more living organisms implies a lower oxygen level;
- The total suspended solids (TSS), which results from the organic or inorganic waste in the water. The lower the level of TSS, the clearer and more transparent the water will be.
Mechanical filtration systems
As their name suggests, these filters are installed directly at the bottom of the pond. They are generally low power as they are designed to filter the water of a small decorative pond, without plants or fish (maximum area of 5 m3).
Placed outside the pond, these filters are designed to treat water in medium sized pools (up to 30 m3) that may or may not contain plants or fish. The more powerful range of systems can, in addition to filtering water, generate a fountain, water jet, waterfall or even a small decorative stream.
This is the elite range of mechanical filtration systems! Consisting of several tanks linked to one another, the water is transported due to exerted pressure. It is then transposed to successive tanks (equipped with different size filters, a UV lamp or filter sponge, among others) and is re-distributed into the pond without requiring any further pressure (in the open air via a waterfall, stream, etc.). They are ideal for ponds up to 150 m3. Gravity filters are especially recommended if you have fish in your pond. Both their filtration capacity and flow rate are generally high and they consistenly provide a good yield.
Biological filtration systems
UV lamps: uses for filtration
Some filtration systems on the market (most often mechanical) feature UV filtering on top of the conventional filter. The added technology will further control the bacterial population in the pond water and improve the treatment's efficiency. That being said, a UV lamp consumes electricity and its life-time is not unlimited. That's why it's important to make sure the UV lamp that you choose has sparts parts available!
Factors to consider to correctly filter your pond's water
The pond's volume
Fauna and flora
A garden pond can liven up any garden! With so many options available, here are some pond-related accessories, advice from our editors and more helpful guides:
- How to choose your garden pond?
- How to install your garden pond?
- How to choose your water filtration system?
- How to choose your garden pond pump?
- How to choose your water pump?
- How to control water pressure?
- How to build your own garden pond?
- How to build your own garden pond with a waterfall?
- How to decorate your garden pond?
- How to maintain your gardeb pond: having the right reflexes
- How to maintain your garden pond?
- What are the best plants to put in your garden pond?
Jeremy, construction site supervisor, Cardiff 118 guides écrits
Electrician by trade, I first worked in industrial estates where I installed, wired and fixed a large number of electrical installations. After this, I managed a team of electricians for this type of work. 10 years or so ago, I turned to building and construction. From the modest family home, to gyms and theatres; I have been able to coordinate, audit and organise all sorts of construction sites.
for 4 years now, I am restaoring and bulding an extrension to a bungalow in the heart of the welsh countyside. My experience in manual work and my knowledge means I am proud to be of service. Terraces, interior design, roofing, plumbing, electricty, anything goes! We have, my wife, daughter and I, built almost everything we have from scratch! So to answer all of your questions, and to orientate and advise you on coosing your tools? Easy!
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