Some of us have been guilty of Unblocking drains with venom (sorry chemical solutions). There are not many occasions when the use of chemicals are in fact the first of the action.
That’s why … if not to release the bolt lock on the left with a bad odor with a liquid and possibly dangerous to float or sink in your sommink.
Is there something we can do?
Nice of you to ask 
A piston is almost always a preferred option for the release of sewage contamination. The movement toward the top and bottom of the piston case of disability. Typically, the blockage is removed. You must ensure that the end of the cup completely covered by water, and passing the entrance is also – to prevent the flow of water.
It’s a good idea, from the outside, if Unblocking waste line manually. If you click on the blocked part of management, do not forget to place a bucket or pan under the end of the line before attempting to blocking.
Once you have done, clearly, a load, make sure that the wearing of signs on the ring and replace it before reassembling the faucet. Do not forget to check if all the joints are in the correct position. Otherwise, this precaution could lead to leakage of direction. You certainly want that.
If a piston is not a blockade, try a plumber’s snake as spiral cleaning. Store the material they have, in general, of the reserve. Remove the blockage of the expiry of the tube, the son and feed into the pipeline. If the wire is disability, turn the spiral rotation with the snake.
Sometimes it is not always possible for a barrier at the end of the sink. You can try using a hose from outside the end of pipe, where the discharge of waste into a ravine. Sometimes, the duration of the disability a little help to move by clicking on tap water.
If you are not able, for blocking a pipe flow of both extremes, you can try to save the bottle case. Place a container under the error before disassembly, and a plug in the sink-hole. Wash your case, and again, when you are the obstacle.
Apply a little heat coagulated grease or oil, if this is the reason for the termination of blocking a pipe. The heat is melting the fat, on the one hand, put the levers again. To ensure the viability of heating or hair dryer can be the hot tube. This treatment is usually entail that the blockade, for, and wastes should be. Turn the hot water for at least one minute. These are all other traces of grease or oil coagulated.