In this instructable I will introduce you to a simple alternative, one that uses less water than a flush toilet. Water is a resource that is becoming scarcer over time; one that we should conserve better.
PVC, polyvinyl chloride, is a thermoplastic. It softens with heat and hardens up again when it cools. It is easily available in most hardware stores in the form of pipe, and is not very expensive. Considering all the things one can make out of it, I would even call it cheap.
You will find several different urinal designs here. Grab a glass of your favorite beverage and read on.
Step 1: THE BASIC IDEA
The "S" bend in the pipe creates a small reservoir that holds the last of the flush water. This is the same as the trap under a sink. It prevents vapors from beyond the water reservoir from rising in the pipe and smelling up the room. The system is basically odorless.