No artificial stream can do without a stream pump. To ensure that this works as desired and does not turn the stream into a weak trickle or a raging torrent, the required flow rate should be precisely calculated. To do this, you need to know the specific delivery height, which is calculated based on the height of the water outlet at the highest point of the stream.
How do I calculate the right stream pump?
To calculate the stream pump you need, take the delivery head and water quantity into account. 1.5 liters of water per minute should be pumped per centimeter of stream width. Choose a pump with the appropriate performance and delivery head, if in doubt, prefer a stronger one.
Calculate performance
In addition to the delivery head, the amount of water to be pumped is also an important factor in calculating the required pump performance. According to a rule of thumb, a stream requires a volume of 1.5 liters of water per minute per centimeter of width - that is, for an average 30 centimeter wide stream, 2700 liters of water per hour that the pump has to handle. When calculating, also keep in mind that the specified flow rate decreases with the height and length of the planned stream - the higher the gradient that the pump has to cope with, the higher you have to choose it - especially since there are a lot of curves and other structural measures Performance is lost.
Choose a stream pump
So choose the right pump for your stream based on the power required and the delivery height. Both parameters should always be correct and if in doubt, you should choose the more powerful stream pump. You can regulate a stream that flows too strongly by throttling the pump, but you cannot make a weak pump more powerful. When choosing a pump, let yourself be influenced as little as possible by a more expensive or cheaper purchase price, because a pump that is expensive to purchase but efficient will ultimately help you save money by saving on electricity costs. It may be worth comparing the different models in terms of their power consumption.
You have to consider this when buying the stream pump
- important parameters are delivery rate and delivery head
- Flow rate means the amount of water per hour
- This is calculated based on 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 an appropriate safety certificate (TÜV).
- Pond pumps should have a filter.
Tip
Always remove stream and pond pumps from the water over the winter to avoid frost damage.
