I any damage caused by hard water scale deposits or sludge resulting from corrosion. If it remains clogged after using the homemade drain cleaner, you might need to use a small plunger for sinks the baking soda and vinegar loosens the clogging material, freeing the gunk that should start moving around with the plunger’s pressure. Did you find this review helpful? Peterborough’s favourite emergency plumbing and drainage service, with no call out charge. You will be given a case.