How to conserve water

Why water conservation

The fresh water situation

Fresh water is limited

Since 71% of the earth is covered in water, most people can't help but wonder — Why should we conserve?

What we know about the bodies of water on this planet boils down to the following:[1]

    

[1] Source: https://www.thebalance.com/conservation-efforts-why-should-we-save-water-3157877, 15.3.2018

Fresh water consumption is rising

So, we humans depend on the tiny bit available as fresh water – an essential natural resource for life.

But we don't just use water for drinking. We wash in it, clean with it, and use it to produce everything from clothing to food. Fresh water supplies are being used faster than ever for crop production – including feed for livestock and biofuels.[1]

Although we are withdrawing only 10% of renewable water resources, and consuming only about 5%, there are still problems for human use. Water is unevenly distributed in space and in time - and we are degrading the quality of much more water than we withdraw and consume.[2]

It is time to conserve fresh water!

[1] Source: https://friendsoftheearth.uk/natural-resources/13-best-ways-save-water, 14.3.2018

[2] Source: http://www.worldwatercouncil.org/fileadmin/wwc/Library/WWVision/Chapter2.pdf, 14.3.2018

Residential end use of fresh water

 

Applianced/Device Household per day Percent of total
Toilet 33 gallons 24%
Shower 28 gallons 20%
Faucet 26 gallons 19%
Washing machine 23 gallons 17%
Leaks 17 gallons 12%
Bath 4 gallons 3%
Dishwasher 2 gallons 1%
Other 5 gallons 4%
Total 138 gallons 100%

Source: Residential End Uses of Water, Version 2, The Water Research Foundation, April 2016

Kitchen

Install low-flow faucets

Tip#1

Save up to 66% water by replacing the conventional faucets with low-flow faucets.

Let the dishwasher do the job

Tip #2

Use a dishwasher instead of washing your dishes by hand and save between 50 and 75% of the water.

If you are not convinced, read the article "Dishwasher vs washing up: which is cheaper?" published by The Telegraph. The water saving is even higher, if follow Tip #3.

Use the dishwasher fully loaded

Tip #3

Only start the dishwasher, when it is 100% filled. Using it with less load is a waste of water and energy even when using the economy mode.

Install a water and energy saving dishwasher

Tip #4

Exchanging your old dishwasher by a water and energy saving dishwasher not only conserves a lot of electrical energy. It also reduces the water consumption by up to 50%.

Bathroom

Turn off the tapes

Tip #5

Turing of the tapes while brushing your teeth or shaving saves you 5 – 10 l water per minute.

Install low-flow faucets

Tip #6

Save up to 66% water by replacing the conventional faucets with low-flow faucets.

Take a shower instead of a bath

A bath takes about 120 to 150 l water depending on the size of your bath tube. This amount of water can be noticeably reduced by taking a shower instead.

Shorten your shower

Tip #7

Showering 5 instead of 10 minutes reduces the water consumption by… 50%! This can easily save 30-60 l water per shower!

Install a low-flow shower head

Tip #8

Modern low-flow showerheads reduce the water consumption by 50%.

Install a low-flow toilet fllushing

Tip #8

Save up to 50% water by installing a low-flow toilet flushing.

Laundry

Use the washing machine fully loaded

Tip #9

Two washing machines with 50% load consume more electrical energy and water than one washing machine with 100% load. So, fill up your washing machine completely before starting it.

Install a water and energy saving washing machine

Tip #10

Exchanging your old washing machine by a water and energy saving washing machine not only conserves a lot of electrical energy. It also reduces the water consumption by up to 50%.

Questions

Which appliance/device got the highest water saving potential?

How can I conserve water in the kitchen?

  • Replace conventional faucets with low flow faucets.
  • Let the dishwasher do your job!
  • Using a dishwasher half loaded with energy saving mode is more efficient than using it fully loaded.