If you find yourself having a blocked sink in your bathroom, there are some steps that can be taken to help alleviate the issue. You will first need to determine what is blocking the sink and then remove any visible obstructions carefully with either tongs or pliers. If cleared items do not remedy the blockage, you may proceed. The most commonly used technique involves performing use of boiling water by pouring it down one side of the drain until overflowing from another opening created as pressure increases as this helps break up debris clogging your sink such as fat deposits on grease traps etc., alternatively for minor blocks using soda crystals mixed into 1 litre of very hot (but not necessarily boilining) water could also yield an effectiv result without damaging pipework caused because od overzealous plunging motion - but never plunge too hard due so risk cracking ceramic ware present beneath pipes! This mixture should be poured slowly taking approximately 15 minutes at intervals ensuring all powder has been dissolved fully before proceeding with next step. Finally after combining both methods create paste consisting two tablespoons baking soda combined with vinegar cup melted down introduce solution again lightly let effervesce mix stirring around top level respond volatiles gradually come apart free draining them way through empty out basin clear hopefully problem solved reducing further visits inconvenient repairs potentially required by local professionals experienced field particular kinds problems area annually unfortunately recurring events occur