How does a pump chart work?
A pump moves water and simultaneously delivers pressure ( boost pressure in m). How much water is finally displaced depends on the height to which water is pumped and the resistance that occurs in a hose, coupling or, for example, a filter, which is connected to the pump. The maximum specified capacity is at free flow of a pump (0 head), the more resistance a pump encounters, the lower the capacity becomes. To determine which pump you need, there are several things to consider.
Image: The pump chart of the BluFlow pond pumps