This option is free so you can give this one a go first in order for you not to spend any money.
Back to back sinks clog.
If the clog is on one side of a double sink seal up the opposite side of the sink with a rubber stopper.
Baking soda and white vinegar.
Snake from the lavatory roof vent and or.
Then pour the entire kettle of water into the sink and wait.
While you re waiting for the water to heat remove as much standing water from the sink as you can using a mug or small pot to bail out the water.
Because the clog will be found below and downstream from the cross and.
To use a drain snake remove the sink strainer and insert the tip of the augur down the pipe and twist the hand crank which releases the wire cable.
Place the hose end at the entrance of the drain then create a tight seal around the end of the hose and the drain.
Otherwise all that air simply goes up the vent for back to back lavs there are only two ways to remover a blockage.
Keep feeding more of the snake into the drain.
Turn on the vacuum to the highest setting.
Attach the wet dry vac hose to the stopper pipe.
The one that is shaped.
How can i solve this.
When you open the cabinet that is below your sink you will see some pipes.
This is the vertical pipe that goes up to your sink basin.
Remove the p trap with a screwdriver or wrench depending on the fastener type used on your model.
If the water stands in the sink and the clog doesn t move give the water time to cool and remove it to try again.