ᐅ Ordering a Concrete Cistern Online – Any Experiences?

Why did you choose the plastic option? Because it is a bit cheaper?
I have read that with clay soil and a high groundwater level, a concrete cistern would be better, so we are leaning towards that.

The type of ground does not matter with the appropriate substructure. Concrete was not an option in terms of size and shape.

Fragenasker schrieb:

Why did you choose the plastic option? Because it’s a bit cheaper? I’ve read that with clay soil and a high groundwater level, a concrete tank would be better, so we tend to lean towards that.

Exactly. A high groundwater level can cause a plastic tank to float in the worst case. That’s no fun and very expensive to fix. A neighbor just a few houses away had this happen with their recessed (electronically liftable) trash bin box. Since then, their bins have been kept outside the door because no one has dared to reinstall it. You probably need something like ground anchors?

Water from concrete tanks has a better pH value, and the tank itself is more resistant to damage in heavy soil conditions. On the other hand, plastic tanks are generally cheaper, especially in larger sizes. You could even install them yourself after delivery, since their weight is manageable (as long as it doesn’t become a submarine ;-). That’s not possible with concrete tanks. As @rick2018 says, better to go one size bigger. Otherwise, they tend to run dry during long summers. However, I know from comparisons with people who have similar garden sizes that for some, the 2500-liter (660-gallon) tank empties quickly, while for others there's always some water left. It depends on planting choices and watering habits, among other factors.

Hello

I have a 10m² (107.6 ft²) cistern. I’m very satisfied with it. Rainwater flows in through a filter. Always clean, always cool.
With a mini excavator and a 10m² (107.6 ft²) container, digging the hole is no problem (the topsoil goes back into the garden).
A layer of sand for leveling, and the truck lifted the unit in. No magic involved. I think the access road should be as short as possible, since that is a cost factor.

Steven

rick2018 schrieb:

Better to choose a larger cistern. This way, you can also capture and store heavy rainfall effectively.
If plastic is an option, check out Graf cisterns.
We are happy with our 76,000-liter (20,079 gallon) submarine-type tank.

We have the smaller and shallower version: Platin 7,500 – by the way, groundwater-stable up to the tank crest height.

A concrete cistern is always preferable. If it develops a leak, it can be easily sealed, whereas plastic cisterns usually become completely unusable. Instead of searching online, I would recommend contacting local civil engineering companies. For reference: Our 7000L (1850 gallons) concrete cistern, including delivery, excavator, and installation, cost €2800. Additionally, the filter was €450, and the Rainmaster rainwater harvesting system for toilets, washing machines, and garden use, including installation, was €2200.