Assess Leak and Shut Off Water Supply

What happens here

Observe the shower faucet to confirm that hot water is continuously running and the handle is unable to completely stop the flow. Locate the main water shut-off valve for the house, typically in the basement or utility area, and turn it off. This will stop water flow to all fixtures.

Goal: The video begins by demonstrating the problem: a shower faucet that continuously runs hot water and cannot be shut off. The first critical step is to locate and turn off the main water supply to the house to prevent flooding during the repair.