How does a plumbing system work?
A residential plumbing system is made up of two (2) separate systems. One plumbing system carries freshwater into the property, and the other plumbing system takes wastewater away from the property. Water entering the property is under pressure. It enters the property with enough pressure to travel throughout the entire building, even in an upward direction. When water comes into the property, it goes through a water meter that registers the amount of usage. The system has multiple shut off valve points, including a main shutoff valve, so that you can stop water flow to some or all of the property. The wastewater removal system relies on gravity to take used water away from the house.