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.
How to snake from the roof.
Yes the one on the roof.
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.
Snakes can slither their way up anything that will lead them to the roof such as trees.
Preparing to unblock the vent.
Indoor plumbing is messier than roof plumbing but it s also safer so try plunging and snaking the drain inside first to make sure going on the roof is even necessary.
Snaking a vent stack from the roof would entail carrying a heavy auger up there and running an extension cord to power it but milwaukee tool recently launched a revolutionary idea in augers.
Now with my k 60 i take it up to the roof with me if i don t feel comfortable climbing on the roof then i pull a toilet.
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I would run my snake through it attach my cutter then band it to the vent with a 2 x 1 5 or 3 x 1 5 or 4x 1 5 band.
Vents allow sewer gases to escape and allow air.
Best way to snake from the roof i use to use flex 1 5 pvc hose.
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