How to calculate the needed flow rate of aquarium canister filters?
Calculating The Needed Flow Rate of an Aquarium Filter.We therefore recommend that you only clean the filter when the pump output noticeably decreases.Ī period of 8 weeks between cleaning should, however, be possible with shorter cleaning intervals bacterial activity will suffer. There are no fast rules for this, because there are too many factors which influence the cleaning intervals, such as size of aquarium, fish stocking, type of plants as well as type and quantity of food.
How often should an external filter be cleaned? This is the optimum way to avoid air entrapment in the filter. Please take care, that the water outlet (pressure side “OUT”) is situated above the water surface level during filing. Start up the filter by priming, (see instruction manual).4009560 (see instruction manual on maintenance and care). Another important task is the regular cleaning of the pump chamber, as well as the cooling and grease channel, with the EHEIM Brush Cleaning Set No. Clean the inside of the inlet, the outlet as well as the inlet tube, spray bar and the hose connectors on the filter (adapter, shut-off taps) several times in a push-pull motion using an EHEIM Universal Cleaning Brush No. Clean the whole hose installation regularly.Check the hose set-up for possible kinks or restrictions.Check that your filter layering set-up is done according to our recommendations, see.Depending on the model, fine filter pads and filter wool must be changed with each filter cleaning. Remove the filter media from the filter basket and rinse them through in lukewarm water. We recommend that you take the following measures to guarantee optimum, trouble-free filter operation: contamination in the hose set-up and in the pump chamber.hose set-up or other accessories set-up.The reduction in circulation performance is, from our experience, generally due to: The running noise can become louder with increased contamination of the filter. Unlike the constant pump output, the circulation performance of the filter declines, as it becomes more contaminated. We must differentiate between pump output and circulation performance. Due to the constant revolutions, the pump system always gives the same performance. synchronised with the frequency of the mains supply or it is idle.Įven, for example, fluctuations in the voltage will not affect the revolutions. This means that the impeller rotates at 3000 rpm. This type of pump system is based on the synchronous motor principle. The output reduction of your external filter is most probably not a failure of your appliance. Why is the circulation performance of my external filter reducing?
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