Water filter out of recycled materials

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We are going to show you a wonderful hack to turn a jar into a water filter using materials that can be found in your house and garden 😉


Before we begin, it’s important to note that water filters use two different techniques to remove impurities:


  1. Physical filtration: This is the process where water is strained to remove larger impurities.
  2. Chemical filtration: This process involves passing water through an active material that removes impurities chemically as they pass through. It may surprise you but charcoal is the main filtration component used here!


If you want to know more, have a look at the video above for a better understanding of how water filters work!


What you’ll need:

– Water bottle

– Scissors

– Coffee filter, cotton balls or fabric

– Sand or charcoal

– Gravel

– Small rocks

– A cup to hold the filtered and unfiltered water.


How to do it:



1) Using your scissors, cut off the end of the bottle and use the pointed tip to make a small hole in the center of the cap.  


2)  Stick your coffee filter (or cotton balls or fabric) through the hole and down the cap. You can use a pen to push the coffee filter down to the bottom.


3) Fill up the bottle about 5 cm with sand or crushed charcoal, then add another 5 cm of gravel onto the layer of sand. Finally, place a layer of small rocks into the bottle.


Pour the dirty water into the filter and… it’s happening! You have pure, filtered water!


Just to be extra safe – If you’re going to drink it, do make sure you boil it first! 😉