toilet auger (available at UK retailers like Wickes ) into the drain. Turn the handle clockwise to feed the wire deeper until you feel resistance, then rotate it to break up or hook the blockage. YouTube +2 When to call a professional? If the water is backing up into other drains (like the shower or sink) or if these DIY methods fail after several attempts, you may have a main sewer line issue that requires a professional plumber. Would you like to find a