Pvc pipe is USUALLY used to house electrical wires. However, I use it for many other purposes. I used it to build a cart that can go up stairs easily while carrying a backpack. I built this because i have to carry alot of stuff up and down the stairs. Also I made a “ping-pong ball blower” to help get the ping-pong balls that are hard to reach under the table. It is hard to reach under the table, but with this handy tool, you can blow the balls right out! Last, but not least, did you know that pvc pipe can be used in rocket science? When you put in sugar, potassium nitrate, and a little bit of kitty litter, you can make a rocket!