Best External filter

Filter systems are based on an identical concept and serve to produce oxygen exchange in the water and to clean the garden pond of unwanted contamination. The more water there is in the pond and the larger it is, the more powerful the filter must be. In large garden ponds, external filters have proved their worth due to their higher performance and are mainly used because they can allow large quantities of water to pass through and process them within a short time. For an external filter to fulfil its function without restriction and to be suitable for the size and quantity of water in the garden pond, its performance must be adapted to the local conditions. With the right filtration, every pond becomes a biotope and is suitable as a healthy habitat for aquatic plants and fish

External filters are particularly powerful and are suitable for very large garden ponds or natural ponds on the property. However, they also require more power than proportionally much smaller internal filters. You also need a footprint that offers enough space for the voluminous size and allows the external filter to be made practical and usable. On slopes or in dense undergrowth, it is very difficult to place an external filter, which can present a greater challenge for filtering the garden pond. As there are different sizes, capacities and operating modes of external filters, it is important to find out the right model for your garden pond through consultation and to ensure that the capacity is matched to the quantity of water.

High-quality external filters can be relatively cost-intensive and require a lot of space on the property. A selection based on quality should therefore be the focus and help to make the right decision and to purchase the external filter to match the garden pond. The power indicated by the manufacturer is only an indication and should not be used as the sole criterion for the decision. It is more helpful if pond owners look around in the evaluations of other buyers and find out there which external filter convinces in price and performance and fits to their own garden pond. Test reports also support the purchase and prevent wrong decisions. If an external filter is not powerful enough and cannot circulate the existing water quantity, the garden pond will not be completely cleaned and in the worst case can tip over due to contamination. The oxygen content is also sustainably influenced by the external filter and serves as the basis of life for plant and animal inhabitants in the water. When buying external filters, comparisons can be helpful and generally rule out the problem of too little performance or too high energy consumption.