The pump must pump away the water in a 5-6 meters higher ground sump. The pump makes the hesitation.
Since the existing installation was already designed for my predecessor pump, I was looking for a pump that could be hung in the shaft. Due to the design I can hang the pump outstanding at three points with chains.
The existing hose is a 1 1/4 inch hose.
I have just the supplied connection piece of the pump is not used (1 "), but went to the hose directly to the pump and have secured the hose with a conventional clamp. Keeps super!
This I can maintain my 1 1/4 inches over the complete installation.
Another plus point of the pump is the relatively low power consumption in relation to the theoretical flow rate.
The pump is very quiet in operation, so that I at first repeatedly raised the lid of the manhole to vergewissen me that the pump actually works.
The pump is now for about 2 months in operation. I would buy them again at any time.
