How to collect rainwater off your roof safely
Harvesting rainwater is a sustainable process that helps in water preservation for future use.
Besides the provision of clean water, storing the harvested rainwater helps in reducing reliance on utility-supplied water and therefore reducing water bills. Collecting rainwater requires a properly designed and installed roofing system. This includes the roof itself, the gutters and the collection system consisting of pipes, pumps and storage tanks.
The Collection System
The entire roofing system needs to be large enough to ensure that it is sufficient for the amount of rainwater expected in a certain area. The roof material should be adequate for rainwater harvesting since some materials can leach off harmful contaminants to the water. The size of the tank should also be factored in depending on your needs. The gutters should be regularly cleaned and maintained to ensure there are no blockages or leakages.
The Storage System
Depending on where the storage tank is located, a pump can be incorporated to allow for the water to be pumped to a header tank where the water can then flow via gravity and can then be used by a household. If gravity feed is not possible, consider a solar-powered pump. The water storage tank should be properly screened at the entry and exit to avoid breeding of mosquitoes and other pathogens. This water should only be used to flush toilets, watering the garden, and in the laundry. It is not usually suitable for drinking unless it is chemically treated.
Keeping the system clean
Overall, the whole roofing system needs to be regularly maintained to make sure that the rainwater harvested is not lost and complies with health and safety requirements. scheduled professional gutter maintenance is the best way to ensure water quality, maximize capture and eliminate waste at all times.