Hello,
I am new to the forum and hope I have posted in the right section. If not, I kindly ask for your understanding and for a moderator to correct this.
Here is my situation:
We are currently building a house and have just received the first design from the architect for the building permit / planning permission. It includes raising the ground level around our future house by about one meter (3 feet). This is intended to provide backflow protection for the drainage system without the need for technical equipment. According to the wastewater authority, this solution is preferred, which I agree with.
However, this means that the adjacent garage will be about one meter (3 feet) lower, and a small staircase will need to be installed.
Since we are building our house to be barrier-free on the ground floor, the stairs are undesirable. We would also lose a passage space between the house and the garage, which we had planned to use for garden work. Our plan was to be able to drive a van, excavator, or similar vehicle through there.
The alternative to raising the ground level would be a technical backflow prevention device. From what I have read, it is advisable to include a lifting station as part of this. These systems require electricity (which is probably negligible) and need regular maintenance.
My questions are:
I am not yet fully clear on this topic, so I hope you can help me out.
I am new to the forum and hope I have posted in the right section. If not, I kindly ask for your understanding and for a moderator to correct this.
Here is my situation:
We are currently building a house and have just received the first design from the architect for the building permit / planning permission. It includes raising the ground level around our future house by about one meter (3 feet). This is intended to provide backflow protection for the drainage system without the need for technical equipment. According to the wastewater authority, this solution is preferred, which I agree with.
However, this means that the adjacent garage will be about one meter (3 feet) lower, and a small staircase will need to be installed.
Since we are building our house to be barrier-free on the ground floor, the stairs are undesirable. We would also lose a passage space between the house and the garage, which we had planned to use for garden work. Our plan was to be able to drive a van, excavator, or similar vehicle through there.
The alternative to raising the ground level would be a technical backflow prevention device. From what I have read, it is advisable to include a lifting station as part of this. These systems require electricity (which is probably negligible) and need regular maintenance.
My questions are:
- Is the technical solution practical?
- What are the costs involved? (I have seen figures around 2,500 Euros. Is this realistic?)
- What electricity costs should I expect? (I have only found one specific bill.)
- What about maintenance costs and maintenance intervals?
- How reliable is this technical equipment?
- What happens in case of a power outage?
I am not yet fully clear on this topic, so I hope you can help me out.
draekster schrieb:
As far as I have read, it is apparently advisable to use a lifting device as well.With a trench depth of 2.2m (7.2 feet), I don’t see any problem at all. There seem to be some local specifics involved. Maybe check again with the planner to find out exactly what the concerns are.
As shown in the drawing, the volumes of the downpipes are almost adjacent to the retention basins.
Within my 30 centimeters (12 inches) of peaceful sleep allowance, it is already included that the floor slab crew might arrive a bit tipsy and accidentally set the house one slab thickness too deep.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Within my 30 centimeters (12 inches) of peaceful sleep allowance, it is already included that the floor slab crew might arrive a bit tipsy and accidentally set the house one slab thickness too deep.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Just don’t let anyone sell you a pumping station given the conditions shown in the picture.
The shaft can also be a little deeper.
From my point of view, I would allow !at most! an electric backwater valve for the wastewater inlet (<2000€).
11ant has already explained everything about that.
That would then be like wearing suspenders with a belt.
The shaft can also be a little deeper.
From my point of view, I would allow !at most! an electric backwater valve for the wastewater inlet (<2000€).
11ant has already explained everything about that.
That would then be like wearing suspenders with a belt.
The reason for raising the house is not clear from the information provided.
Is there a statement from the utility authority indicating that the sewer pipe may experience back pressure exceeding 3m (0.3 bar)? This is very unlikely.
A backwater valve certainly won’t hurt, even if the reason is not obvious.
Raising the house might make sense if you are building in a flood zone or have groundwater at surface level. Is this the case?
Is there a statement from the utility authority indicating that the sewer pipe may experience back pressure exceeding 3m (0.3 bar)? This is very unlikely.
A backwater valve certainly won’t hurt, even if the reason is not obvious.
Raising the house might make sense if you are building in a flood zone or have groundwater at surface level. Is this the case?
D
draekster6 Mar 2020 07:14The reason behind raising the building was, I believe (unfortunately I don’t have a drawing of it right now), that there is quite a steep slope on the street. The drainage in the street apparently made this necessary. At least the architects had already mentioned during a meeting that the house might need to be "raised a bit."
According to the construction company, the one-meter (3 feet) raise would probably cost around €15,000.
They estimated a backwater valve at about €4,000–5,000. However, I’m not sure if this includes a sump pump.
OK, thanks, that gives me a general idea. We will definitely decide against raising the house.
However, I am still curious about the maintenance costs.
I read that for a single-family house, maintenance should be done once a year. I found very different prices online. Of course, this probably depends on the specific technology and manufacturer. On average, I saw prices ranging from €150 to €200. Is that realistic?
According to the construction company, the one-meter (3 feet) raise would probably cost around €15,000.
They estimated a backwater valve at about €4,000–5,000. However, I’m not sure if this includes a sump pump.
OK, thanks, that gives me a general idea. We will definitely decide against raising the house.
However, I am still curious about the maintenance costs.
I read that for a single-family house, maintenance should be done once a year. I found very different prices online. Of course, this probably depends on the specific technology and manufacturer. On average, I saw prices ranging from €150 to €200. Is that realistic?
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