I need some suggestions on what to do next.
What I have is a Kitchen Sink that will not drain.
Here is what I have done so far:
I started by removing the p-traps on both basins. They were/ are clean. Next I used a 25 foot snake to try to locate and clear the clogged area. I tried this several times - still won't drain. Next I got a larger 50 foot snake and tried again. The snake passed through easily - usual effort to get around elbows, but it moves freely once through. This snake is a 1/2 inch coil with about 1 inch diameter at the head. I confirmed that it pased through the drain line all the way to the main line out to the sewer. Still will not drain. Next I tried running the snake down from the roof vent - no problems found and still will not drain. Running the disposer pumps the water out of the sink and into the adjacent basin. Plugging the adjacent basin results in pumping out all of the water, but it all comes gushing back in when the disposer is turned off - seems it pumped it up the vent stack. This drain line to the sink is the longest run in the house and nothing else ties into it. It has it's own "y" where it connects into the main Sewer drain in the basement. All other sinks, toilets, showers, & laundry work perfectly.
What am I overlooking?
Any suggestons would be greatly appreciated.
What I have is a Kitchen Sink that will not drain.
Here is what I have done so far:
I started by removing the p-traps on both basins. They were/ are clean. Next I used a 25 foot snake to try to locate and clear the clogged area. I tried this several times - still won't drain. Next I got a larger 50 foot snake and tried again. The snake passed through easily - usual effort to get around elbows, but it moves freely once through. This snake is a 1/2 inch coil with about 1 inch diameter at the head. I confirmed that it pased through the drain line all the way to the main line out to the sewer. Still will not drain. Next I tried running the snake down from the roof vent - no problems found and still will not drain. Running the disposer pumps the water out of the sink and into the adjacent basin. Plugging the adjacent basin results in pumping out all of the water, but it all comes gushing back in when the disposer is turned off - seems it pumped it up the vent stack. This drain line to the sink is the longest run in the house and nothing else ties into it. It has it's own "y" where it connects into the main Sewer drain in the basement. All other sinks, toilets, showers, & laundry work perfectly.
What am I overlooking?
Any suggestons would be greatly appreciated.
Last edited: