Well for garden irrigation

Hello everyone,
I would like to gather your opinions, experiences, and tips on the topic of wells for garden irrigation.

We will be sowing lawn in spring, about 450 m². I would like to carry out the irrigation automatically with Hunter or Rainbird.
The existing garden water connection from the house is too weak (18 l/min, 1100 l/h).

There is no cistern, since a well has always been desired.
In the neighborhood (about 50 meters away) there are already wells, the water is at about 7 meters depth.

Now the question about the type of well: driven well or drilled well?
Driven well:
- what are your experiences: how much quantity/hour can you get from a driven well without overloading it? Is such a well suitable for automatic irrigation?
- which pumps would you recommend for that?
- what did it cost you? either price per meter or all in?

Drilled well:
- I haven't received any offer yet, but according to research it is significantly more expensive than driven wells. But quantity would not be a problem there, right?
- I recently read from Rick about pump tips in the well topic. Are these suitable for automatic irrigation?
- what did it cost you? either price per meter or all in?

What are the general experiences with the well?
I thought preferably as far away from the house as possible so that nothing can settle through water and sand extraction over the years.
If that is not an issue, I could theoretically use the existing soakaway shaft (already 4 meters deep and lined with concrete rings) and drive a well there. Advantage there, I would gain 4 meters safety depth, since the pump itself would stand at -4 meters. Disadvantage, near the garage and directly on a paved area -> risk of settling?

I am attaching a sketch of the property.
Many thanks in advance!

We have a well that is presumably located directly under the house (it was already there when we took over the house, we forgot to ask the previous owners and then they soon passed away, and our house was expanded several times). There is no settling. We will probably have a new one drilled for the new construction, but it will be close to the house again (2 m distance). I am not afraid of settling because the water is extracted from about 8 m depth (for us), and not in quantities that would cause the earth above to move. I can’t explain it scientifically, but I have never heard of such a thing happening. My son’s well is also right next to his house, and nothing happens there either.

If it is big enough, I would definitely use the infiltration shaft. You can install the pump and storage tank there and keep it frost-free. This means you don’t have to remove the pump or let it run dry in the winter.

Hello FF2677

if the water is actually at 7 meters, a drilling can be done in half an afternoon by yourself.
Pounding is of course cheaper, but brings little water to the surface.
I would do it myself. Rent drilling rods and a plunger for a weekend. The blue well pipes and 3 meters of filter pipes. If you do it right, the cavity should stay pretty small and settlements would not be to be feared.
If there is already a shaft with 4 meters, you should take that. The rest can be done with a little shovel.
If you have it done, make sure they use the blue pipes. They like to save and use KG pipes. It’s cheap, but of course shoddy work.

Steven

Is there already an approval? Depending on the federal state, wells require approval. For example, only existing wells on the old farm properties are allowed to be operated. New wells are not approved because we are becoming a water shortage area. And the municipality, of course, also likes to make money from the water.

Hello FF2677

if the water is actually at 7 meters, drilling can be done in half an afternoon by yourself.
Driving is of course cheaper, but it brings up little water.
I would do it myself. Rent drilling rods and a plunger for a weekend. The blue well pipes and 3 meters of filter pipes. If you do it right, the cavity should remain quite small and settlements would not be to be feared.
If there is already a shaft with 4 meters, you should take that. The rest can be done with a little shovel.
If you have it done, make sure they use the blue pipes. They like to save and use KG pipes. It's cheap, but of course botched work.

Steven

But the soakaway shaft stands on a gravel bed and is probably also filled with gravel 1 meter inside. So digging there yourself is not possible.
Regarding drilling yourself:
-we built with a basement and up to a depth of 3-3.5 meters it was all just clay => meaning I could easily get through that with a hand drill.
-but I don't know what comes after that and how well one can work with the drill then.
-I imagine plunging to be complicated again.
But such a well with a deep well pump would of course be a dream.

Have you drilled yourself? What amounts do you get at what pressure and drilling depth?

Hello

Gravel is not a problem. You just have to drill "in the pipe."
That means you attach a KG pipe, about 150mm. You drill and push the KG pipe down. This way you bring up the stones and seal on the side. Loam works exactly the same. Loam is pretty easy.
Soaking is not difficult at all. Actually, it is the easiest.

Steven