Blocked kitchen sinks can pose a large problem for homeowners, but there are simple ways to resolve the issue.Residents should pour two or three tablespoons of bicarbonate of soda down the plughole, as well as a small amount of vinegar, before flushing the materials using hot water, DIY expert Jo Behari has told the Daily Mirror.However, if this does not prove to be effective, there is another solution.Ms Behari explained that homeowners should place a bucket under their sink and begin to take apart its U-bend. Once this is completed, they can wash the U-bend in a separate sink and then restore it to its original shape.After sink blockages are addressed, property owners may then want to consider changing the appearance of their kitchens.Interior designer Jo Hamilton advised that using bright colours in a kitchen alongside darker alternatives could help to create a stylish look.