After we set the 1 "connections with bayonet fitting with Teflon tape, we closed the pump to our well pipe. From about 5m, the pump must suck in the water, which works very well when a few suction preparations the water to pump reached. These preparations consist sew together the connections airtight and then the pump often fill with water until the pump itself, the water can permanently suck.
The pump is processed fairly decent for the price. In addition, you can easily order spare parts from the manufacturer. There are of course some Kunststöffteile installed, but this is ok for the price. The pump is running without any problems for several hours at a stretch, it is not going overly warm. Clear that the pump is meant to be used for watering the garden with reasonably clear water. Nasty dirty water or hard construction duties could bring the pump to the limit.
With us, the pump is in the garden shed and watered by hosepipe and sprinkler the lawn. This makes the pump wirlich well and for that we have bought it. So I can only express a recommendation for our purpose. The water pressure is really good, our groundwater comes with a similar pressure as the tap water from the hose. In addition, it is pretty quiet, you can hear them at shed door closed a few meters away barely. Since other pumps are noisier.
So all paletti :-).