I tried a plunger. I tried boiling water and baking soda (a myth). I even rented a manual drain rod from the Selby Road Tool Hire. I managed to push the blockage three feet further down the pipe. I made it worse.
I rang a local Dyno-Rod equivalent. Because it was 5 PM on a Friday, the quote was £280 just to show up. Instead, I found a local independent plumber who specializes in drainage (look for "Jetting" or "High Pressure Water Jetting"). blocked drain york