Your house has tons of water In it like a lot. All the time. That’s because it's in the supply pipes that come from your city’s water tower. There is pressure behind this water because the water in your water tower is up much higher than your house, and that creates what is called head pressure. That's why the water comes out of your faucet with such force.
But all this water has to go somewhere, I mean, it can't just dump into your cabinet! So we devised a method of sending the dirty water from your faucet all the way to the sanitation services that purify it, and send it back into the system. Instead of dumping on the floor, the water goes down the drain through a system of pipes, and it's usually not too complicated. It will probably go from your sink, through a 1 1/2″ pipe to a 3 or 4 inch “stack,” which is a fancy name for a vertical pipe that all of your drains tie into. This stack flows straight down to the main sewer service line for your house, which usually comes in in your basement, and leaves the house, headed directly to the street at a depth of about 4–10 feet.
This image pretty clearly shows the vertical stack that is receiving the drainage from all of your house appliances, and sending it right on down to the street sewer line.
When it gets to the street, it ties into a MUCH larger line, depending on where you live, anywhere between 10 inches to several feet in diameter. This massive pipe carries all of the sewage and drain waste water to your local water purification center. Yes, that means that you are drinking sewage.
· 3 weeks ago