If you are having trouble with a blocked sink in Great Washbourne, Gloucestershire, there are several solutions to the problem. First try using an ordinary plunger over the affected drain and leave it for some time before trying again. If this doesn't work then use either vinegar or baking soda followed by boiling water poured down your drain as both these methods dissolve any blockage which might be preventing drainage from taking place properly. For more stuck on blockages that cannot be removed through natural means, use a specially designed bottle plughole unblocking device found at most hardware stores or supermarket outlets - however if after repeated attempts still nothing works then hire out an industrial-sized snake wire tool (available from local plumbing suppliers) this should get even old stubborn clogs dislodged allowing clear flow-through once again!