In good physical shape: Plumbers must stay in good physical shape. The job can be physically demanding and require strength, endurance and flexibility. Just remember to be smart no matter what taunts you may receive from others. The plumber's back and knees disappear too soon when they aren't lifted properly.
Sometimes, a plumber's duties may include the need to work face down or in tight spaces, so it's important to be able to do so while maintaining coordination between several limbs. Plumbers often need to climb, lift heavy objects, and work in extreme temperatures, so they need to be physically fit to perform these tasks.