Your house is filled with a maze of all sorts of pipes used for water supply and drainage. Sometimes it can look like a maze, figuring out where they all lead to or come from. Other times, they are installed with such precision they are a piece of artwork!
Traditionally, water supply lines are made of copper however in the past you will find galvanized steel and lead. Recently PEX (cross-linked polyethylene) is being used new homes or in renovation work.
DWV (drain, waste, vent) pipes on the other hand are made from cast iron, copper, PVC (polyvinyl chloride) but more commonly today ABS (acrylonitrile butadiene styrene) or all black stuff for short :).
What we don’t like to see are rubber hoses (as pictured above) as these are for temporary use. A garden hose is a great example where after each use you turn the tap off and that relieves the pressure in the hose. In this picture, a considerable portion of the water supply lines in the house used rubber hoses. Just like the hoses to your washing machine, they can burst if you don’t turn the water supply off after each use.
Avoid floods and damage to your property. Use the proper materials when doing plumbing work…and call a professional for help!