The waste lines in your house are connected to a venting system that performs two important functions.
Roof vent and wall cleanout.
Behind the wall where you can t see a vent line and drainpipe lead to a soil stack which is the control center of the wastewater system.
Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood.
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Unfortunately the best place to clear a blockage in a vent pipe is from the roof.
Brass cleanout plugs shall be utilized with metallic drain waste and vent piping only and shall conform to astm a 74 asme a112 3 1 or asme a112 36 2m.
The vent pipes are part of the drain waste vent or dwv system of a house or building and they do not carry water inside them.
You won t be sorry.
Leave the hose on the roof while you climb down and fetch a 10 to 20 foot plumbing auger also known as a snake.
Drain pipes take the wastewater to the soil stack.
How to clear drains through the roof vent.
If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it.
Vents allow sewer gases to escape and allow air.
Because clearing vent pipe blockages can be a real pain in the you know what you can take some preventive steps.
Insert the head into the vent opening and feed in the cable until you encounter.
First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic.
Cleanouts with plate style access covers shall be fitted with corrosion resisting fasteners.
Working up on the roof can be a dangerous task to say the least.
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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.
Cleanout plugs shall be brass or plastic or other approved materials.
Through the stack sewer gases are carried up to the roof through vent lines.
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