Plumbing follows gravity-pressure, which means water seeks its own level.
Your home's plumbing system has two subsystems; one brings freshwater & the other removes wastewater.
The water entering your home is under pressure that enters under enough strength to travel upstairs and corners.
In plumbing emergencies, you must quickly close the main shut-off valve to avoid flooding the home.
The drainage garbage leaves home because of drain pipes all tilted or tipped downwards towards sewer line/septic tank.
Supply and drainage subsystems of plumbing are interrelated and often overlap. These are two separate operations.
Traps are necessary components of the drainage system responsible for forming a seal against sewage gas and collecting hair or dirt to prevent clogged drains.
Before undertaking any plumbing repair, turn off the water supply to the appliance or main outlet. It's essential to know the main shut-off valve's location in your house.
Both supply and drainage subsystems are designed to keep themselves strictly segregated. You must maintain the individual supply shut-off valves to ensure proper functioning.
In addition to the pipes in your basement, examining the foundation of your home will help you understand the components of the DWV system.