This project goes into the build of a simple and cheap two-stage DIY water filter. Also doubles as a stove burner.
STEP 1 :THE MATERIALS REQUIRED
The materials needed for this build are some bricks, bottles,copper coil, activated carbon, sand,gravel
I got the sand and activated the carbon water filtration part on the far left.
In the middle, I’ve got it heated in a copper coil running on isopropyl alcohol. The purified water is coming out on the right side.
STEP 2 : MAKING THE 1ST STAGE FILTER
The next step is to make the 1st stage filter. We take a 2L bottle cut in half, drilled a quarter-inch hole on the bottom and drop in a couple of cotton balls and pack it in there.
The next step is to add the activated carbon, sand, and gravel. Rinse all of them before adding.
STEP 3 : CONNECTING THE COILS WITH THE CANS
Align the bricks and place the cans on top. Place a small tin with the isopropyl alcohol inside the middle can. A copper coil is inserted into the middle can and connected between the first can and the water bottle.
STEP 4 : PLACING THE MIXTURE ON THE TOP
Add the sand mixture filter bottle on top of the first can.
STEP 5 : DRILL A HOLE AT THE BOTTOM
For the first can, the one that holds the activated carbon filter, just
remove the label and drill one small hole at the bottom.
STEP 6 : REMOVE THE TOP AND CUT A SECTION
Then for the second can that holds the copper coil, you cut down the top, take about a third of the circumference off and cut about two-thirds of the way down. Then put one small notch on the top and a hole down below for the coil.
Wrap the copper coil around from top to bottom in a small can, push the can out and leave about a foot on either side.
STEP 7 : ADDING STEAM VENTS
Notice I added a couple of bricks and pointed the end of the copper tubing down directly into the can so we won’t lose hardly any water and make sure to drill those steam vents so the pressure doesn’t build up.
STEP 8 : STARTING THE STOVE
Pour the alcohol under the coil and fire it up. Just put a little in,you don’t need too much. A full glass of water gets purified in three to three and a half minutes.
This gravity-fed two-stage water filter should take care of pond water, stream water, swamp water, and just about any water you can think of.
Don’t try using this without the heavy sand gravel and activated carbon in there or the water will backflow and it may spray out.
An easy way to store this filter when you’re not using it is just to save the bottom half of the two-liter bottle you cut in half and drop the filter in it , holding it perfectly.
This cheap 2-stage heated oil-water purifier can also be used to both purify water and cook at the same time.