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There are many advantages to installing a rainwater tank. On the one hand, the water consumption of tap water can be significantly minimized and on the other hand, nature can be supported because it is less polluted with wastewater.
Rainwater can be used very versatile and not just to water flowers and irrigate the lawn.
You can also wash the laundry with rain water in the washing machine and can also use the rainwater for toilet flushing. This is made possible by rainwater tanks, which are made of concrete or plastic. Rainwater tanks can be constructed above ground and underground, so many families are wondering which variant is the better one?
All in all, you can not say anything about that because each of these options has its own advantages and disadvantages. You should look at both options intensively and then decide in each case, which variant is the better.
Advantages and disadvantages of above-ground rainwater tanks
Rainwater tanks for above-ground mounting are usually made of plastic. They are available in many different colors, so you can adapt them a little to the look of the garden. Especially the color green is popular.
However, this can also be considered as a disadvantage, because not everyone wants to have a big green bin in his garden. Remedy here creates a conversion, e.g. wooden. One must also keep in mind that these rainwater tanks only a very small capacity that is between 500 and 1,000 liters.
If you want a little more capacity, you can, for example, choose rainwater tanks that are not in the garden but in the basement. They are also usually made of plastic and have a capacity of up to 2,000 liters. Nevertheless, this water supply is usually not sufficient, even if the rainwater is used in the house.
In this case, underground rainwater tanks are simply better. A plus, however, are the low costs associated with the construction of an above-ground rainwater tank made of plastic. Corresponding rainwater tanks are available in almost every DIY store under 200 euros.
Furthermore, it must be mentioned at this point that such a system can usually be extended at any time. This is not easily possible with underground rainwater tanks. So you can also start with a small rainwater tank system and expand it if necessary or depending on existing budget.
Advantages and disadvantages of underground rainwater tanks
Underground rainwater tanks offer the enormous advantage that you can not see them and that they have a very high capacity. Not infrequently, an underground rainwater tank is housed in the driveway of a house. However, it must be ensured that this is a rainwater tank made of concrete. This is the only way to ensure that the tank is stable enough that even a car can easily drive over it.
Underground tanks are easily able to store up to 5,000 liters of water. However, the work required for the construction of the rainwater tank is very extensive and also to appropriate supply and maintenance shafts must be considered. Furthermore, such a rainwater tank is difficult when repairs are to be done or the tanks have to be cleared of the mud on the ground.
Another negative point is the high costs associated with the construction of an underground rainwater tank. Nevertheless, underground rainwater tanks always prove to be very useful and help in the long term to save a lot of money. Even if it takes a few years to recoup the costs of the system.
So you have to decide for yourself, which variant is best suited in the individual case. Dependent one can do this also for which variant it gives financial aids of the city or the municipality. In some federal states, the construction is rewarded with grants from a rainwater tank system.
Here one should therefore necessarily inform oneself, as it looks in the hometown with such donations.