markules
2022-05-24 23:40:34
- #1
Hello everyone,
my civil engineer has carried out all underground construction work including drainage on my property. He installed a total of three shafts, i.e. rainwater retention cistern, pumping station, and inspection shaft. Rainwater is discharged directly from all sources into the cistern and, when it first reaches the overflow, it ends up in the pumping station, where it is pumped via a pressure line into the inspection shaft. From there, the water is discharged into the transfer shaft (of the city). My house has not yet been built, so I am only talking about rainwater.
Today I noticed that there is water in the rainwater retention cistern, even though nothing is connected to the pipes yet. My suspicion is that the shaft is leaking because the cone placed on top of the shaft does not fit properly and is simply too large. In the attached photo, you can see that there is a water trace visible in a certain spot.
Is it even acceptable for the rainwater retention shaft to be installed so that the cone attachment is larger than the shaft? Will such a shaft be approved by the building authority and drainage department even though it is leaking? My civil engineer said that it is fine, which actually surprises me because foreign water can get in. What should I do in this situation? Can the gap be sealed with mortar or does the cone attachment have to be replaced so that it fits? The garden is not yet finished and it may be necessary to adjust the height of the cover.
Thank you very much for the help.
my civil engineer has carried out all underground construction work including drainage on my property. He installed a total of three shafts, i.e. rainwater retention cistern, pumping station, and inspection shaft. Rainwater is discharged directly from all sources into the cistern and, when it first reaches the overflow, it ends up in the pumping station, where it is pumped via a pressure line into the inspection shaft. From there, the water is discharged into the transfer shaft (of the city). My house has not yet been built, so I am only talking about rainwater.
Today I noticed that there is water in the rainwater retention cistern, even though nothing is connected to the pipes yet. My suspicion is that the shaft is leaking because the cone placed on top of the shaft does not fit properly and is simply too large. In the attached photo, you can see that there is a water trace visible in a certain spot.
Is it even acceptable for the rainwater retention shaft to be installed so that the cone attachment is larger than the shaft? Will such a shaft be approved by the building authority and drainage department even though it is leaking? My civil engineer said that it is fine, which actually surprises me because foreign water can get in. What should I do in this situation? Can the gap be sealed with mortar or does the cone attachment have to be replaced so that it fits? The garden is not yet finished and it may be necessary to adjust the height of the cover.
Thank you very much for the help.