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Calculating the right size of a rainwater tank is a kind of alchemy. We will show you three ways to calculate the size of the tank. From the simplest, to the most widespread, to the way to get the most out of your tank. Do you know which month of the year it rains the most? How much water does your garden need for watering? How much rain does it get in your region and how much water will the roof catch? We will reveal all this in this video. You can also read more about how to calculate the right size of the tank here: https://zakra.cz/blog/jak-velkou-nadr...