Your home’s plumbing is a complex network comprised of three systems designed to supply water, transport waste, and provide fuel for key areas in the home, like bathrooms and kitchens.
The water supply system supplies fresh water to faucets, toilets, sinks, and appliances such as water heaters and dishwashers. The drain-waste-vent system (or DWV) transfers greywater and waste to a public sewer or septic tank, ventilates sewage gases, and helps maintain optimal pressure in your drainpipes. Though not as common as the Water Supply and DWV, some homes have natural gas plumbing that distributes fuel to gas-powered appliances such as stoves, water heaters, and furnaces/boilers.
Your home inspector is going to be most concerned with inspecting the following: