A vacuum is being created that is pulling things in the wrong direction.
Why do you snake a drain from roof vent.
With the right machine it s not an issue.
For those items you can t remove from above run the plumber s snake down the vent pipe.
Best way to snake from the roof gear junkie did you see the post with photo s a while back where the plumber poster used a long length of 3 plastic to make a snake guide tube that went from the roof vent down to his snake that never left ground level i thought it was pretty ingenious heck maybe thats the way it s done in his area i ve just never heard of it around here he used a series.
Listen carefully for water backing up and a sudden whoosh when the weight of the water forces the clog into and down the drain.
Typically a 3 of 4 roof vent can be found on the older homes.
If you can see but can t reach run a plumber s snake down the vent pipe.
Feed the end of a garden hose down the vent pipe and have someone on the ground turn on the water.
The waste lines in your house are connected to a venting system that performs two important functions.
If you want to snake a roof vent the electric eel model c is capable of turning 200 feet of self feeding 1 1 4 dual cables at 500 rpm.
I snake all the time from the roof.
Before you consider cleaning your drain from a rooftop take into account the accessibility of the vent condition of the roof weather and any other factors that might complicate the job.
How to clear drains through the roof vent.
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.
Of course i avoid steep roofs and most 2 story pitched roof.
This is most likely to occur on a flat roof from which the snow does not drain properly or after a really heavy snowstorm that results in several feet of snow on the roof.
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.
Depending on the design of your roof and location of the vent setup and cleanup can also be easier than using an indoor drain opening.
Listen carefully for water backing up and a sudden whoosh as the weight of the water pushes the clog back down the drain.
If you started to experience the problems described above after a snowstorm snow on the roof is probably blocking your sewer vent.
Snaking a sewer from the roof is my go to plan if there is.
To continue feed the end of a garden hose down the vent and have someone on the ground turn on the water.
If the air from the drain or toilet smells like sewage this can also be a sign that the vent pipe is blocked.
Also i don t go on tile roofs as there is a risk of damage.