Drinking tap water is a common practice in countries such as Portugal, Spain or Germany, where strict sanitary controls ensure confidence quality levels. Even so, experts warn of a small care that can further increase safety in domestic consumption.
According to the newspaper, besides being safe, this option represents a much cheaper and ecological alternative to the consumption of bottled water. Tap water can be up to a hundred times cheaper and does not generate plastic residues.
Despite general confidence in public network, experts recommend simple but effective care to reinforce the safety of domestic consumption.
What is the “four -hour rule”?
This is a practical orientation: If a tap has been unused for more than four hours, the water should run a few seconds before using it until cold comes to the touch.
Why is this care important?
According to the same source, the goal is to eliminate water that has been stopped in pipes, where it can accumulate small particles or microorganisms, especially in old facilities.
Old pipes require attention
This gesture is particularly useful in homes with aged metal pipes that can release waste over time and change water quality.
Although the risk is generally reduced, water stagnation may favor the development of bacteria such as Legionella, especially in wet environments with warm water.
Regions with more mineralized water
In areas where water contains more minerals, the problem can get worse, making this small care even more relevant to health.
We recommend:
Take advantage of the initial water
Water that runs in the first seconds does not need to be wasted: it can be used to water plants, wash the floor or utensils, promoting more efficient use.
Reduce waste at home
This reuse not only avoids waste but also encourages more conscious and sustainable practices in domestic daily lives.
Adopting this measure does not require effort, but increases confidence in tap water and reinforces hygiene and safety care at home.
Drinking water is a precious resource
Even in countries with abundance of drinking water, such as Portugal, the responsible management of this resource is increasingly urgent in the face of climate change.
Preserve today to guarantee tomorrow
Water that seems inexhaustible can become scarce if not used responsibly. Small gestures can have a great long -term impact.
A reminder for everyday life
Next time you open a tap after several hours, remember: Letting the water run until cold comes out can be a simple but essential gesture for your health and the planet.
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