Before starting the pump, make sure that it is completely immersed in water. On the version provided with a float switch, ensure that the float can move freely. Ensure that the minimum dimensions of the borehole are as in the figure below. The dimensions of the borehole must also be calculated with relation to the quantity of water arriving and to the pump flow rate so as not to subject the motor to excessive starting operations. When the pump is to be in a fixed installation, with a float, a check valve must always be fitted in the delivery pipe. This is also advisable on pumps with manual operation.
We recommend you read the Feka VS instruction manual (also available on our DNA software) for all information on the use of the product.