Caixa d'Água Prédio
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
reserva predial
About this calculator
The water tank sizing calculator for buildings is a useful tool to calculate the amount of water needed to meet the needs of a building. The formula used is based on the building reserve, which is an important concept in advanced hydraulics.
To calculate the capacity of the water tank, it is necessary to consider the number of people who will use the building and the time of use. The standard description is 200 L per person per 2 days, but this may vary depending on the specific needs of the building.
It is essential to remember that the water tank must be sized according to the real needs of the building, considering factors such as the number of bathrooms, the leisure area and the number of people who will use the building. In addition, it is crucial to consider common precautions, such as regular maintenance and periodic inspection of the water tank.
Frequently asked questions
What is the building reserve?
The building reserve is the concept of calculating the amount of water needed to meet the needs of a building, considering factors such as the number of people, time of use and leisure area.
What are the common precautions with the water tank?
The common precautions with the water tank include regular maintenance, periodic inspection and checking the capacity of the water tank to ensure it is operating correctly.
Why is it important to size the water tank correctly?
It is important to size the water tank correctly to ensure it meets the real needs of the building and avoids problems of water shortage or water tank overheating.
What happens if the water tank is not sized correctly?
If the water tank is not sized correctly, it can lead to water shortage or water tank overheating, which can cause health and safety problems for the building users.