Kitchen Sink Clog

[HaydenRaye]

I have a double kitchen sink and when filling one side the water will fill both sides. I have taken apart the drain and cleaned it and also put a 25 auger down the drain line and it still remains clogged. The cleanout line is cast iron with a frenco transitioning into PVC under the sink in the cabinets. The cleanout plug is stuck (assuming rusted on). I am not sure where the main drain plug is, I have the 4" drain under the toilet with a plug but that is further back from the street than the sink drain line is.

Is there anything else I can do to attempt to unclog the kitchen drain?

I have not tried to apply any heat or rust penetration oil on the stuck cleanout drain yet.

 

[Twowaxhack]

Remove the cleanout under the sink and run 50’ of cable.

Or run the cable down the vent if it’s accessible from the roof.