Things You'll Need
Instructions
Measure 1/4 inch from the bottom of the clear vinyl tube and make a mark on the tube. Line this mark up with the bottom of the PVC pipe and tape the two together with waterproof tape.
Wrap the vinyl tube evenly around the PVC pipe. Tape them together at the end of the PVC pipe and measure 1/4 inch beyond the end of the PVC pipe on the vinyl tube and mark it. Cut the tube carefully with a box knife or blade.
Fill a bowl with water and set it on a table or other flat surface. Place the second, empty bowl on top of the blocks to make it higher than the other.
Place one end of the screw in the bowl with water in it and slide the blocks so the other end of the screw is hanging over it. Turn the screw so water is captured by the end of the vinyl tube that is hanging into it; depending on the direction of your wraps, this might be clockwise or counter. Water will travel up the vinyl tube and be deposited in the upper bowl.