Messerjoe
2024-02-18 11:27:29
- #1
I would be very grateful for tips on draining my old building.
I have outlined the initial situation and two possible solutions.
Initial situation:

The house was previously drained via a soakaway pit. Now it must be connected to an inspection shaft that is 40m away and, due to the hilly terrain, also much too high. A lifting system in the basement would unfortunately not help either, because the ground floor extends far out of the ground.
Solution 1:

I have now learned that the best way is a pumping station with a pressure water pump on the property. For this, a new shaft with one or two pumps would be built in front of the house. The wastewater is collected there, shredded, and pumped with a frost-resistant 40m pressure pipe to the inspection shaft. In my view, I do not need a "loop" that lifts the water over a retention level here, since the inspection shaft itself is already very high (above the ground level at the house). Hopefully, this should work, but unfortunately, it is also a very costly solution (material alone about €10,000).
Solution 2:

I wonder here if a pressure pump could also be installed in the house's basement. That would be a significantly cheaper solution, but I am not sure whether it is allowed to pump directly from the basement with a long pressure pipe through the soil to the inspection shaft. Suitable pumps with shredding and appropriate power exist, but they are usually only used as a lifting system to bring wastewater upwards to a gravity drain. Does anyone have more detailed knowledge about this?
Regards and thanks,
Wolfgang
I have outlined the initial situation and two possible solutions.
Initial situation:
The house was previously drained via a soakaway pit. Now it must be connected to an inspection shaft that is 40m away and, due to the hilly terrain, also much too high. A lifting system in the basement would unfortunately not help either, because the ground floor extends far out of the ground.
Solution 1:
I have now learned that the best way is a pumping station with a pressure water pump on the property. For this, a new shaft with one or two pumps would be built in front of the house. The wastewater is collected there, shredded, and pumped with a frost-resistant 40m pressure pipe to the inspection shaft. In my view, I do not need a "loop" that lifts the water over a retention level here, since the inspection shaft itself is already very high (above the ground level at the house). Hopefully, this should work, but unfortunately, it is also a very costly solution (material alone about €10,000).
Solution 2:
I wonder here if a pressure pump could also be installed in the house's basement. That would be a significantly cheaper solution, but I am not sure whether it is allowed to pump directly from the basement with a long pressure pipe through the soil to the inspection shaft. Suitable pumps with shredding and appropriate power exist, but they are usually only used as a lifting system to bring wastewater upwards to a gravity drain. Does anyone have more detailed knowledge about this?
Regards and thanks,
Wolfgang