A rainwater tank allows you to collect rainwater and use it to water the garden. This method of operation allows you to save a lot on municipal water bills. Moreover, the purchase and installation of this type of tanks may be co-financed by government and local government programs. All you need to do is choose the right water tank. Which? Below you will find a list of the most interesting models of rainwater tanks - maybe one of them will also work for you!
Check out rainwater tanks at the Onninen wholesaler
Skolimowski underground/above-ground rainwater tank
Rainwater from the roof can flow into underground rainwater tanks , buried in the ground, or above-ground, usually located under the wall. The former are usually larger. Hiding the container underground has a positive effect on the aesthetics, but requires greater financial outlays and is not always possible. On the other hand, an above-ground rainwater tank , as long as there is a place for it somewhere out of the way, does not have to be conspicuous.
Now you don't have to decide where to place yours Skolimowski rainwater tank . A barrel made of PEHD can initially be placed right behind the house, but in the future you can bury it in the ground. When closed tightly, it can also be used as a home sewage treatment plant or septic tank. The universality of applications is certainly an important advantage of this type of solution.
Aqt Water underground rainwater tank
The container made of PEHD is intended mainly for unstable soils with a high level of subcutaneous water. It is a lightweight model that you can easily transport to the desired location. That is why it is very popular among owners of single-family houses. A special feature is the low cross-section, only 90 cm. The cylindrical design of the Aqt Water rainwater tank provides better stabilization, while the anti-rodent system protects your home against pests.
PEHD rainwater tank from Roth
A neat, green tank, reinforced with steel bands, available in two basic versions: with and without an overflow siphon. What is a siphon? This solution is known mainly from bathrooms, as an element of draining water from a washbasin or toilet. The tube, run in the shape of the letter "U", retains some of the water. This, in turn, blocks gases produced in the sewage system so that they do not escape back upwards into the bathroom. In case of rainwater tanks from Roth, this type of solution is supposed to stop the smell and gases forming inside the container, so that they cannot be felt throughout the entire yard on a sunny day. Roth ground containers can be placed in series - then only the first one requires the use of this type of siphon. The rest are directly connected to each other, creating the equivalent of a large rainwater tank.
Rainwater set "Ogród Komfort" by Graf
Although the rainwater tank is a key element of the entire system, additional equipment is needed to properly operate it. That is why many models are sold immediately in sets - this is the assumption made by Graf, for example. What is included in one purchase?
- The main element is still the rainwater tank with the entire superstructure.
- Internal filter, which is also a filler calmer, i.e. a set of elements ensuring smooth flow into the tank.
- Siphon, preventing gases from escaping from the inside.
- Telescopic cover, most often green.
- Automatic submersible pump, equipped with a suction hose and a float. Additionally, an additional filter is placed here before the pump inlet and a non-return valve.
- Hose connecting the pump and the draw-off point. The point itself is equipped with two quick connectors with shut-off valves.
This is an example summary accessories for rainwater tanks from Graf . Depending on the type and size of the container, some of the elements may differ significantly.
Comparison of rainwater tank models
Above we presented four rainwater tanks with a capacity of approximately 3,000 liters. We have selected one of the most interesting models from each manufacturer that can be found here. What is the direct comparison of the mentioned tanks? The differences will be best visible in the form of a table. The prices below are net prices for customers not registered with Onninen. Each logged in user has individual discounts on selected products.
| Skolimowski | Aqt Water | Roth | Graf | |
| Capacity [l] | 3500 | 3000 | 2000 | 2700 |
| Length [m] | 2.40 | 2.45 | 2.05 | 2.08 |
| Width [m] | 1.52 | 2.10 | 0.72 | 1.57 |
| Height [m] | 1.68 | 0.89 | 1.64 | 1.40 |
| Weight [kg] | 120 | 130 | 120 | 120 |
| Price [PLN net] | 3280, PLN 08 | 5325, PLN 45 | 2960, PLN 26 | 6742, PLN 54 |
| Advantages | The tank can be used as above-ground or underground. | Low height tank, designed for unstable soil. | Possibility of serial connection and expansion of the system in the future. | The model is available with full accessories. |
All tanks were made of high-density polyethylene, ensuring high resistance and durability. Therefore, the weight of all tanks is very similar. The dimensions of the containers are also the same, with the exception of Aqt Water (reduced height) and Roth (narrow tank for connecting into batteries). Which tank will work for you? It depends on what your rainwater collection needs are.