If you have a blocked sink, you may have heard of Destop as a miracle solution. However, it should be noted that Destop is not always effective in unclogging a sink. Here's why. Firstly, if the blockage is close to the sink, the use of a plunger can be much more effective in unblocking the situation. Indeed, the plunger can help to move the blockage and free it. In addition, if the blockage is further down the pipe, the amount of water often dilutes the product, which can make it ineffective against the blockage. For example, a 10 metre long sink pipe contains about 60 litres of water, which may make the use of Destop unnecessary in this case. Finally, Destop cannot treat blockages caused by limescale, roots or blockages of solidified soap. In these cases, the most effective method is hydrocleaning, which allows the sink to be unclogged for a long time. In short, Destop can be useful for some types of clogs, but it is not suitable for all situations. If you are experiencing plumbing problems, it is recommended that you call in a professional for an intervention adapted to your situation, such as hydrocleaning.