- 2 - 500ml bottles
- Glue gun
- 2.0 mm Drill
- Drill machine
- PVC pipe
Step 1: Glue the Bottle Caps Together With the Glue Gun.
Step 2: Drill Between the Caps to Make a 2.0 Mm Diametered Hole
Step 3: Glue the Pipe With One of the Caps From Inside
Step 4: Success!
Put dirty water in one of the bottles and put the cap without the pipe.
Keep in sunlight for a while and water will collect in the upper bottle.
Dirt is left behind.