ᐅ Groundwater in the garden—the pumps are constantly running at full capacity.
Created on: 26 Feb 2022 19:41
J
johnnycalzoneJ
johnnycalzone26 Feb 2022 19:41Hello everyone,
I hope this is the right subforum, and I would like to share my issue with you:
We live in a fully basemented L-shaped bungalow built in 1987, which is situated on a slight slope. During the excavation of the foundation pit back then, neighbors say they encountered layers and groundwater. Due to the amount of water, the house was shifted several meters within the building area. The perimeter drainage and additional cross drainage probably just manage to remove the incoming water.
We have two submersible pumps alternating operation. Currently, after the quite wet past months, the pumps run approximately every 3 minutes for at least 1.5 minutes. The plumbing company that services the pumps annually has never seen such a large amount of drainage water before. The basement is slowly becoming increasingly damp at the affected corner of the house. I have at least installed a horizontal barrier using Kiesol and sulfate slurry.
A friend who works at a company specializing in soil investigations drilled a test borehole last year in the area where, according to sewer CCTV inspections, most of the water appears. The water-bearing layer is located at about -2.6m (8.5 feet).
Since the water-bearing layer is that deep, this groundwater cannot be drained directly into the stormwater sewer because it lies higher in the street.
The neighbors, since the construction of our house, have hardly any groundwater or drainage water, which suggests that we are handling the pumping work for them.
Is there a way to keep the water away from the house or to divert it beforehand? I was thinking of something like a vertical barrier or similar.
By the way, the soil is cohesive clayey soil, a reminder of the last Ice Age.
Best regards,
Benjamin
I hope this is the right subforum, and I would like to share my issue with you:
We live in a fully basemented L-shaped bungalow built in 1987, which is situated on a slight slope. During the excavation of the foundation pit back then, neighbors say they encountered layers and groundwater. Due to the amount of water, the house was shifted several meters within the building area. The perimeter drainage and additional cross drainage probably just manage to remove the incoming water.
We have two submersible pumps alternating operation. Currently, after the quite wet past months, the pumps run approximately every 3 minutes for at least 1.5 minutes. The plumbing company that services the pumps annually has never seen such a large amount of drainage water before. The basement is slowly becoming increasingly damp at the affected corner of the house. I have at least installed a horizontal barrier using Kiesol and sulfate slurry.
A friend who works at a company specializing in soil investigations drilled a test borehole last year in the area where, according to sewer CCTV inspections, most of the water appears. The water-bearing layer is located at about -2.6m (8.5 feet).
Since the water-bearing layer is that deep, this groundwater cannot be drained directly into the stormwater sewer because it lies higher in the street.
The neighbors, since the construction of our house, have hardly any groundwater or drainage water, which suggests that we are handling the pumping work for them.
Is there a way to keep the water away from the house or to divert it beforehand? I was thinking of something like a vertical barrier or similar.
By the way, the soil is cohesive clayey soil, a reminder of the last Ice Age.
Best regards,
Benjamin