Water is pumped out of the ground, treated and distributed for home and commercial use. In many third-world countries, rainwater is collected and stored in storage cisterns or tanks. Rainwater collection systems offer many advantages.
The best rainwater collection systems are those that save money and time such as the roof catchment system which collects rainwater that is soft which means that is has no mineral and is better to be used for laundry and watering plants. The roof catchment system provides building and home owners with their own source of water. Since that rainwater is free, home and building owners can collect as much rainwater as they can thus reducing the burden on municipal water treatment plants and drainage systems. The best rainwater collection systems are those that are simple to use and require little or no maintenance.
When using rainwater collection systems to collect rainwater, there are a few things that you need to take into consideration. First of all, you need to be aware of the frequency of rainfall. In many places, rain falls at least once a month. A good rainwater collection system is one that will allow you to collect sufficient water to last you until the next rainfall. This will be a system with a very large catchment area which is the area on the roof or in the ground that can be used to collect rainwater and a very large storage tank. A very large catchment area will help you to decrease your lost factor which is the amount of water that falls outside of the tank.
There are many different sizes of rainwater collection tanks. Some of the smallest tanks hold approximately 50 gallons of water while some of the larger tanks hold approximately 30,000 gallons of water. In order to determine the right size, you need to determine the frequency of rainfall and the total amount of water you will need for a given period.
Rainwater collection systems are perfect to be used on islands or places with salt-contaminated ground, with little or no water sources and with plentiful rainfall. When collecting rainwater, you should not only cater for your daily needs but you should also cater for times of drought.