Hello everyone,
We are currently working on building our single-family house. The building application has been submitted, and we promptly received the first letter from the building authority stating:
Rainwater must generally be infiltrated or directed into a nearby open water body, as long as this is possible without excessive effort and damage (§ 48 b Abs. 3 WG-BW).
After a phone consultation with the building authority, we were told that rainwater is not allowed to be discharged into the sewer system due to water protection zone III. The proposed solution (if you can call it that, as they basically said “there’s no way around it”) is a cistern. Permeable paving was also mentioned for the driveway, although we’re not sure what that is for. There is no water body nearby, by the way.
We had actually considered a cistern for watering the garden but excluded it due to the cost. Now we are being forced to install one despite the financial strain, so I have a question for you.
There seem to be countless types of cisterns (according to Google). Can you tell me which type would suit our purpose and where it’s most important not to cut corners?
Kind regards
We are currently working on building our single-family house. The building application has been submitted, and we promptly received the first letter from the building authority stating:
Rainwater must generally be infiltrated or directed into a nearby open water body, as long as this is possible without excessive effort and damage (§ 48 b Abs. 3 WG-BW).
After a phone consultation with the building authority, we were told that rainwater is not allowed to be discharged into the sewer system due to water protection zone III. The proposed solution (if you can call it that, as they basically said “there’s no way around it”) is a cistern. Permeable paving was also mentioned for the driveway, although we’re not sure what that is for. There is no water body nearby, by the way.
We had actually considered a cistern for watering the garden but excluded it due to the cost. Now we are being forced to install one despite the financial strain, so I have a question for you.
There seem to be countless types of cisterns (according to Google). Can you tell me which type would suit our purpose and where it’s most important not to cut corners?
Kind regards
Tolentino schrieb:
I also bought a similar item at the large river. Unfortunately, the internal hose was so narrow that the flow rate was ridiculous. Yes, it was enough for hand washing, but not for construction water (which it was needed for). Hmm. I have no comparison, but in my case the flow rate (without measuring) is perfect and it has also been used for construction water.
nokapito schrieb:
Wow, I didn’t expect so many replies in such a short time!
Let’s go step by step 🙂.
When I google “rigole,” it looks like a box that you bury in the ground and then let water flow into it through pipes. Currently, we have normal downspouts planned that lead into an inspection chamber.
How would it work with a rigole? Instead of directing the water into the inspection chamber, just pipe it to the rigole?
How does that actually work? Can you see it from above?
Is that the same as a rigole?
With the rising water prices, it’s definitely making me think more about the extra costs of a rainwater harvesting tank. As I said, we initially left it out, but somehow it seems more sensible than, for example, a carport :-/.
Can you let the water from the downspout run out directly and openly with this?
Is it really that simple? How do you get the water from the roof into it? If the water infiltrates more slowly than it can drain, won’t it back up the downspout?
We don’t know what kind of soil it is yet (we were told that soil surveys are usually only done after the building permit/planning permission is granted). The neighbors say it’s rather clayey. The plot used to be an orchard that has never been built on, so it’s been a green meadow all along.
What is a “sickerschschtringe”? And what kind of pipe do you hammer in? Sorry.Hello,
we were also required by the city to install a rigole. Based on the area (roof, driveway, garage, and terrace), the respective square meters were calculated, and it was clearly explained which rigole to install (Otto Graf EcoBloc 420...).
Accordingly, the driveway was equipped with a rain gutter made of bentonite (Kann) that collects the water from the driveway and channels it together with the water from the roof via the downspouts into the rigole at the back of the property. There, the water also mixes with water from the garage and terrace. All in all, an expensive setup (rigole 4.8 meters x 2.8 meters x 1.0 meter = 3K plus 1.5K for installation plus about 35 meters of piping from the driveway to the rigole = another 3.5K).
However, you can build over the rigole, because it is important to note that the rigole collects surface water, not the infiltrating water from the lawn!
RE-1407 schrieb:
plus about 35 meters (115 feet) of piping from the driveway to the soakaway = another 3.5k)
You’re not seriously charging 3.5k for 35 meters (115 feet) of pipe, are you? 😀TmMike_2 schrieb:
You’re not seriously paying $3,500 for 35m (115 feet) of pipe, are you? 😀 No, the pipe itself doesn't cost that much! The labor costs €100 per meter (about $100 per meter), including the pipe.
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