Captain Sensible
Well-known member
I went for the snake style rod from screwfix that you twist. It got the blockage in the end. It was years of grease build up. Flushed through with more sulphuric acid and now water. Overall cost, £20 for the snake rod and £20 on the acid. Ruined an old coat and a few towels but I'm sure I've saved myself a few quid vrs a call out.