Cistern in the garden / driveway

Yes, the 23K liters should be enough for an initial firefighting water attack. There are minimum quantities for that. One year later, a public 100K liter cistern was built directly opposite. Very annoying, especially since we had offered to share the costs in the case of a public building. But I only say "authority".

Do you have a concrete or plastic cistern?

do you have a concrete or plastic cistern?

Concrete.

We had to build 2 cisterns for firefighting water, which we are now allowed to repurpose. Back then, the two beauties cost about 5K euros each including installation for 23K liters. The connection to the house drainage was rather trivial - the planning of the irrigation is much more complex.

May I send you something via PM?

Sure, although I fear I can't say much more about that part.

Sure, although I’m afraid I can’t say much more about that part.

I just can’t write, I just realized oops:

Even with a 500m2 plot, I would rather build towards 10,000 liters. That way you can store some water during rainy periods and in winter. Depending on how the garden is designed, even a small garden uses a few square meters per irrigation at a time. I don't care whether it's concrete or plastic. It depends on what fits better in terms of size, shape, and price. I would immediately install an inlet filter with backflush. It can also be misused as a fresh water supply. Choose a pump with sufficient volume and pressure, especially when it comes to irrigation. Forget about supplying the toilet or something similar in the house with it. It doesn't make sense at all (double piping, etc.) Furthermore, the cistern is too small if you want to irrigate. After two to three dry weeks at the latest, it is empty.