ᐅ Cistern in the garden / driveway

Created on: 31 Jan 2020 22:28
P
Piotr1981
We are planning to build or buy a rainwater cistern. Has anyone here had experience with this? The cistern is primarily intended for garden irrigation.
According to the development plan, rainwater infiltration on the property is not allowed.

Concrete?
Plastic?
What else should we consider?
Toilet connection?
Where to position it?

I would like to take this into account directly during the excavation for the foundation slab and have the hole dug at the same time.

Looking forward to your ideas and tips.
rick20183 Feb 2020 21:21
At my sister’s place, we are using an affordable submersible deep well pump with an additional floating intake. It only delivers 6,000 liters per hour. It’s just about sufficient for the larger irrigation zones. She already had it, otherwise we would have chosen a larger model.
We install a Wilo TWI4.14-13-CI 3 in our rainwater cistern and use it for garden irrigation. However, our cistern is bigger.
Generally, I would aim for a flow rate between 6 and 8 m³/h (cubic meters per hour), depending on the required delivery head.
These submersible pumps are not bad and especially affordable, plus the floating intake.
B
Bookstar
3 Feb 2020 21:49
Are they all pressure-controlled?
rick20183 Feb 2020 22:48
It depends. In our case, an additional pump control will be installed, so it is not just pressure-controlled.
P
Piotr1981
3 Feb 2020 22:50
Can you explain to me what pressure-controlled means and what the differences are? The tip sounds good. Is your sister satisfied with it?
rick20183 Feb 2020 23:01
Runs without any issues. The pump control is integrated. However, we installed a relay that only activates the pump shortly before irrigation.

Pressure-controlled means that the pump builds pressure within the system. It switches off once a certain pressure is reached. When you open a tap or valve, the pressure drops. The sensor detects this and turns the pump on...

This is not a problem in a sealed system. But if you have leaks or a slow pressure loss, the pump will turn on repeatedly to maintain the pressure.
W
world-e
23 Mar 2021 20:01
rick2018 schrieb:

For my sister, we are using an affordable Tipp deep well pump with an additional floating intake. It only has a capacity of 6,000 liters per hour (1,585 gallons per hour).

Do you know which one it is? I couldn’t find any information about connecting a floating intake to the AJ 4 Plus 100/57 AUT.