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    Eco Friendly Construction Spain - Greywater Systems


Greywater systems can help you save 35% to 40% on your annual water bill, and while saving money, you will also help save the environment and provide a better future for our children and their children to come. With this amount of savings, your Greywater Recycling System pays itself.

"UNESCO has predicted that by 2020 water shortage will be a serious worldwide problem."

The Greywater Recycling System is a must for anyone who cares about the environment.

Diagram: average domestic water consumption

So how does the Greywater system work?

If you take into account that approximately one third of your water (and of your water tax money) goes down the toilet, wouldn’t it be a good idea to do something about it?

The Greywater System is the solution. It is composed of patented, state-of-the-art components that filter used water from your shower, bath and laundry, and then reuses it for your toilet’s evacuation system.

The recycled water, which we will refer to as grey water, is strictly used for your toilet or for irrigation, and cannot get in your drinking-water system.

Foreign particles are filtered, so it is like using normal water, but without having to pay again, while also doing something effective for the environment.

Furthermore, once integrated into your existing plumbing, the system operates seamlessly, so the only difference you will notice is on your water bill.


Let us take the global picture into account. As per a recent study, by the year 2020 water shortage will be a serious worldwide problem. Our water resources will not be sufficient anymore. So an environmental approach is not only a good thing, it is necessary if we want our children to have water when they grow up.

In fact, Canada rates as the second biggest water consumer (right behind the US). On average, each Canadian uses 1600 cubic meters of water per year. This is 6400 tons of water for a family of four… This is more than twice as much water as the average person from France, three times as much as the average German, almost four times as much as the average Swede and more than eight times as much as the average Dane. Canada’s per capita water consumption is 65% above the world average. At this rate, our water supplies (mainly ground-level sources) will not be able to support our growing needs and expanding population.

This means that even here, in our own towns, we will soon experience this shortage. You may have noticed recently that more and more municipalities have started taxing water consumption; this is a direct consequence. And it’s only just begun. Important changes will be asked of us over the coming years.

So, we may as well take advantage of this opportunity to do our part for the environment while also keeping our money in our pockets.

Did You Know?

  • About 65% of indoor home water use occurs in our bathrooms. Toilets are the single greatest water user.
  • “UNESCO has predicted that by 2020 water shortage will be a serious worldwide problem.”
  • Did you know that in Canada in 2001, the average person uses more than 335 litres of fresh water a day?
  • In your house check for leaks from faucets and pipes; even the smallest drip can waste as much as 75 liters a day.
  • Almost 80% of the earth's surface is covered in water. Of this, 97% is salt water, 2% is glacial ice. That leaves less than 1% as fresh water for us to use.
  • The human body is about 70% water; we cannot survive more than a week without water.
  • A mere 10% of our home water supply is used in the kitchen and as drinking water.
  • Indoor water use peaks twice a day year-round, in the mornings and evenings.
  • The biggest peaks during the year occur in the summer, when about half to three quarters of all municipally treated water is sprayed onto lawns.
  • As a community grows, the water use grows even more.

Lets make a difference!

The Global Water Crisis
Of all the water in the world, only 3% is fresh. Less than a third of 1% of this is available to humans. The rest is frozen in glaciers or polar ice caps, or is deep within the earth, beyond our reach. To put it another way, if 100 litres represents the world's water, little more than half a tablespoon of it is fresh water available for our use.

However, fresh water is essential to our existence, it allows us to produce food, manufacture goods and sustain our health. In fact, about 70% of our body is comprised of water.

Global water consumption has risen almost tenfold since 1900, and many parts of the world are now reaching the limits of their supply. World population is expected to increase by 45% in the next thirty years, while freshwater runoff is expected to increase by 10%. UNESCO has predicted that by 2020 water shortage will be a serious worldwide problem.

One third of the world's population is already facing problems due to both water shortage and poor drinking water quality. Effects include massive outbreaks of disease, malnourishment and crop failure. Furthermore, excessive use of water has seen the degradation of the environment costing the world billions of dollars.

Some sobering examples of water consumption around the world include:

  • So much water is drawn from the Colorado River (which formed the Grand Canyon) that often it never flows to the sea.
  • Several U.S. states are already experiencing water shortages and are now tapping into Canada’s water supply.

There is often a high amount of 'embodied water' associated with many items we use or consume. For example:

  • It takes 41 500 litres to produce a kilo of meat
  • It takes 500 litres to produce one orange
  • It takes 1 340 000 litres to produce 1 tonne of aluminium
  • It takes 50 litres to produce a copy of Saturday's newspaper
  • It takes about 5000 litres of water to create one kilogram of rice.
  • It takes 4 litres to produce a bottle of beer

It’s time to be water efficient!

It is obvious that we cannot increase demands for water much more without detrimental effects to the environment, society and the economy. It’s time to become water efficient! This involves reassessing our relationship with water, and learning to use it more sparingly. On the most basic level, it requires a behavioural change, and assigning a value to water that truly reflects its worth.

We can also unlock economic benefits of being water efficient.

Everybody has a responsibility to save water, if we are going to allow future generations to enjoy a similar standard of living that we enjoy now. In fact, many of the impacts associated with water use are likely to have an effect on our own lives!

Diagram: Aral Sea - decreasing water levels.




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