When should we not consume water?

Pro and con Should you save on water?

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Saving water sounds environmentally friendly. But there is no opinion without a contrary opinion - this also applies to water consumption. Should we even save on water in this country? And if so, which one?

Status: March 21, 2017

According to studies by the responsible EU Commission, public water supply companies would need to provide almost a fifth less water if Europe's consumers had to use water-saving washing machines, dishwashers and similar devices. A directive that will oblige Europeans to save water is already being worked on - not everyone is happy about it:

"That is perhaps a general problem of the European Union, that we have different regions in the EU. There are certainly many countries in which one has to pay more attention to saving water than in Bavaria ... For us it is important that the resource water is not polluted. That is our top priority ... It is not really necessary for every consumer to pay attention to how many cubic meters he uses per year. We do not have water poverty in Bavaria. "

Detlef Fischer, Managing Director of the Association of Bavarian Energy and Water Management (VBEW), Munich

"We are of the opinion that we should continue to save. The groundwater is also endangered by the way in which we have been and still do agriculture for many years, namely with a lot of fertilizers and pesticides. And these accumulate in the groundwater. And when it does the clean water in the aquifer is used up, the polluted and polluted water arrives at some point, and this has to be treated very costly. "

Renate Schwäricke, spokeswoman for the water working group in the Federation of Nature Conservation Bavaria

"It also makes ecological sense to use water sparingly and consciously. Warm water in particular: It takes a lot of energy to heat water. About a third of water consumption is heated during personal hygiene: bathing, showering - you should be conscious and economical with this In addition, the water that flows through the networks is pumped in with energy. If less water is used, less energy is required. "

Matthias Zeuner-Hanning, Bavarian Consumer Center

Sewage treatment plants are often designed for maximum requirements

Another problem concerns sewage treatment plants and sewer systems: If the capacities of the plants are too large, too little wastewater flows. That sounds paradoxical at first, but because too little water is moved, it can cause the sewer pipes to silt up. Then it has to be "rinsed", explained Martin Geiger, water expert of the WWF, the Bavarian Broadcasting Corporation.

But that is not necessarily the last word in wisdom, according to Geiger. It is also conceivable to lay narrow pipes within the affected, large pipelines and thus adapt the system to actual requirements. Structurally weak regions and areas of emigration are particularly affected by this phenomenon. This includes many areas in eastern Germany, but also some regions in Franconia.

Save on water pollution!

Much more important than how much water you chase down the drain and flush is the question: what do you flush away with the water? Because our water is not actually "used up". We pollute it - and then have to clean it again. At the end of the long disposal chain, it ends up in the natural water cycle: in our rivers and ultimately also in the groundwater. And that is where everything ends up that sewage treatment plants cannot filter out of the water.

Everything with measure

The bottom line is that you don't need to have a guilty conscience when there are a few more liters of water every now and then that flow through the pipe. Whether the shower has to run for ten minutes every time is another matter. Conclusion: With a little common sense you can do a lot right.