No artificial stream can do without a stream pump. To ensure that this works as desired and does not turn the brook into a weak trickle or a raging torrent, the required flow rate should be calculated exactly. To do this, you need to know the concrete head, which is calculated according to the height of the water outlet at the highest point of the stream.
Which pump you need depends on the amount of water to be pumped
calculate power
In addition to the head, the amount of water to be pumped is also an important factor in calculating the required pump output. According to a rule of thumb, a stream requires a water volume of 1.5 liters of water per minute and centimeter width - that is 2700 liters of water per hour for an average 30 centimeter wide stream that the pump has to cope with. When calculating, also bear in mind that the specified flow rate decreases with the height and length of the planned stream - the higher the incline that the pump has to cope with, the stronger you have to select it - especially since curves and other structural measures still have a lot to do with it performance is lost.
Select watercourse pump
You choose the right pump for your watercourse according to the required output and the delivery height. Both parameters should always be right and, if in doubt, you should choose the more powerful watercourse pump. You can regulate a stream that is flowing too fast by throttling the pump, but you cannot make a weak pump stronger. When choosing the pump, let yourself be influenced as little as possible by a more expensive or cheaper purchase price, because an expensive but efficient pump ultimately helps you to save money by saving on electricity costs. A comparison of the different models in terms of their power consumption can therefore be worthwhile.
You have to consider this when buying the watercourse pump
- important parameters are delivery rate and delivery height
- Flow rate means the amount of water per hour
- This is calculated using the average width of the stream.
- Compare the pump models in terms of their energy consumption.
- Solar stream pumps are very economical.
- Pumps are live devices that come into contact with water.
- So make sure you have the appropriate safety certificate (TÜV).
- Pond pumps should have a filter.
tips
Always take stream and pond pumps out of the water over the winter to avoid frost damage.