In places where reasonably clean water is hard to obtain, rainwater is often used. In normal households, about a third of water is flushed down our toilet. This means, it is a good idea to use rainwater for non-consumption purposes, such as toilets and cleaning. The concept should be reasonably easy. We could collect rainwater into a tank, filter and store it for future uses. Rainwater can be collected in the underground tank and pumped out when we need it.
There are various configurations we can use to make this system works. The simplest way is to set up a single system for each dwelling unit. This arrangement should work well on any detached dwellings.
In general, rainwater is preferred, because it is free. Also, several homes can access a single tank filled with rainwater. But there will be issues about proper quota and how the electricity for the pump will be used. We also need to consider how to properly collect rainwater, so most of them can be collected efficiently. In general, rainwater can be collected as runoff from the roof and water can be directed to a single container.
Underground storage could be kept cool and bacteria have limited activity at 12 degrees Celsius and lower. There are systems we could use to distribute stored rainwater, direct and indirect.
A pressure-sensitive pump can be placed inside the underground tank and the water is pumped out when the toilet is flushed. When no more is needed, the pressure build-up inside the piping network will stop the flow. This is the cheapest and simplest way of using rainwater for miscellaneous use. Clearly, drinking rainwater shouldn’t be performed, especially in urban areas, because the water may capture harmful chemicals in the air.
In industrial areas, rainwater may be slightly acidic, so it is important to ensure that the tank and piping network could withstand lower pH. Plain metal piping could get corroded more easily and it is a good idea to choose non-reactive material, such as PVC.
Another method is to use a pressure-sensitive pump inside the house. It will suck rainwater from inside the tank and delivers it to any appliance. The pump will be connected to the main water network, if rainwater already runs out. However, this arrangement may take some space inside the house and the noise can be heard. On the other hand, the pump is more accessible and any repair can be performed immediately.
With large capacity tank, it is probably necessary to use steel-framed tank that can withstand higher water pressure. However, it can be rather costly to build, transport and set up.
In general, using rainwater can help us achieve greener lifestyle. We will use less clean water from the main network and the water bills will be much lower. In order to reduce overall costs, we should use low-power pump that doesn’t require more power than necessary. Rainwater is readily available in the environment and we should take advantage of it fully.
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How To Collect Rainwater For Future Use?
