The hose should be fitted with a nozzle set to its most powerful spray.
Why plumber go to roof top.
The top of the ladder should extend 2 or 3 feet beyond the roof line.
The drainpipes collect the water from sinks showers.
Open valleys have metal flashing to protect this critical area of the roof.
The fixture on the left is a washing machine drain box.
Check your plumbing vent stack when you hear grumbling in your pipes or bubbling in the toilet.
What is a plumbing vent.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
The fat pipes in your house make up the dwv carrying wastewater to a city sewer line or your private sewer treatment facility called a septic tank and field.
The plumbing vent also known as a vent stack helps regulate the air pressure in your plumbing system.
This long pipe is called a plumbing vent sewer vent plumbing stack vent or roof vent.
Leaves debris or small animals can get into vent stacks.
The plumbing vent pipe is a vertical pipe that attaches to the drain line and runs through the roof of a home.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
There is more plumbing vent pipe in this photo than drain piping.
You can see the 2 inch drain pipe leave the box and go into a p trap.
The pipe leading to the main roof vent is called the vent stack.
Instead they serve to equalize air pressure within the dwv system and also release sewer gases into the outdoor air as all vent pipes terminate through the roof.
It helps maintain proper atmospheric pressure in a building s waste system and channels the exhaust gasses to the vent.
Just as drain pipes remove water and waste from your home the plumbing vent pipe also known as a plumbing air vent removes gas and odors it also allows fresh air into the plumbing system to help water flow smoothly through the drain pipes however no water.
They also work to vent any sewer gases and nasty odors.
If you have to make plumbing repairs around your home it helps to understand your drain waste vent system dwv.
How to clear a plugged roof plumbing stack.