When the bath or sink gets blocked, it is not the most fun DIY job that you may have to do. If you are able to do the job on your own, you are going to save enough money by not calling the plumber. When you want to deal with a blocked sink Coulsdon, you should start by learning the reasons behind the blockage. Food particles can cause the blockage and so can grease. In the bathroom sink, hair is the first problem and other problems are residue, scum and soap. Sinks do have a tubular trap underneath and they have a curved pipe that connects to the foul water drain. They have a level of water that can prevent odor so that it may not come out of the plughole. This is the place where the food scraps, grime and hair can be found.When the sink is blocked, you should boil water and add it into the plughole and run the faucet afterwards. When this fails to get rid of the blocked sink Coulsdon, you should use a plunger. You should block the hole that it is found at the top of a basin using a wet kitchen towel in order to prevent air from escaping. You have to put the water in a bathtub or sink with a blocked drain and use the plunger firmly over the plughole. You should lift it up and down in rapid succession. You can force the stuff out that has blocked the plughole. This may solve the problem, but not always. The traditional remedy that it is used to deal with a Blocked sink Coulsdon is to use bicarbonate soda with malt vinegar. The mixture is going to fizz and when it stands for some hours it can help in getting rid of the blockage.