A century-old artisanal system for collecting and filtering rainwater in a barrel

Whether due to periods of drought or to save on running water consumption, more and more families are encouraged to collect rainwater at home, whether or not relying on one or more recycled barrels. .

In this centuries-old water collection system, rain travels from the roof of the house to the barrel, using the traditional system of gutters or drainpipes. An effective way to collect rainwater.

This system was very popular in homes in the early 20th century. This method and others have been lost in popular wisdom, lost in oblivion. But fortunately, some books were dedicated to collecting this knowledge, which some are now recovering for their homes.

You can select the barrels to use according to their depth, depending on the liters you want to capture.

This rainwater, in addition to being better for washing clothes, is very ideal for watering our gardens and agricultural fields. Water without chlorine and other types of salts brings vitality to plantations. Many users of this type of barrel claim on the Internet that their plants seem to flourish much more when using rainwater.

If you install a faucet or a tap on the barrel, you can connect a hose to it, which will facilitate the task of watering.

Rainwater harvesting method

How to filter the water?

When you want to use this collected rainwater for human consumption, it is mandatory to filter the liquid to ingest it in maximum safety conditions. In addition, the barrel must not have been previously occupied by chemicals.

It is also generally recommended that barrels have a fine mesh filter on their surface to keep them away from insects or other particles that have not been invited into the process.

To make a household filter that works in these types of containers requires materials such as small stones, medium stones, gravel, charcoal, and fine sand. Layers of different density will be created with these elements, facilitating the filtering of the liquid until it is consumed.

The layer that will occupy the bottom of the container will be composed of medium-sized stones, with a slightly smaller layer of small stones on top and, above, a few centimeters of fine sand that will be under another layer of gravel. Subsequently, carbon will be deposited – fundamental, as it will absorb heavy metals and toxic substances – after which another layer of gravel will be added and, above the centimeters of gravel, a greater quantity of small stones. The process will end with the use of a layer of medium stones on the surface of the barrel.

It is recommended that everyone advises on the density of each layer according to the dimensions of each container.

Charcoal experts advise choosing hard maple charcoal to make this age-old invention that some will hearsay as an invention that was used decades ago in villages.

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