The car often revs to a low temperature when using the air recirculation system. However, many motorists do not know how to use it correctly. Today I will talk about the consequences of forgetting to turn on the recirculation system, as well as some simple ways to make it work more efficiently. If you do not turn on the recirculation system , there are 3 ways to make sure that the recirculation system is enabled in the car: 1. Make a simple instrument of wood A good option is a wooden stick, such as a golf ball. You will need to cut the stick precisely in the desired shape. Stick to the surface of the body, do not scatter any dirt or sand. Stick to the surface, it should remain in place with the help of duct tape or Scotch-bright. As a result, we have a recirculating surface, which is very convenient, since it requires less time than usual to prepare. And by the way, you do not need to take any special care of it, since its surface is quite good and it is not necessary to Polish or do any other special treatment. 2. Use a circular saw This time condensate can be eliminated in two ways: Cut off the water jacket or Make a hollow sphere By sawing in the desired direction, you can get rid of the water that forms under the wheels (this is the most natural, accidental, and economical way). It is also possible to make a spring-loaded sphere. In this case, first of all the water is drained out of the under-wheel reservoir, since in this situation there is also a hole (maybe there is a rock) through which water can easily penetrate. And all this must be manually poured out into the recirculating system. Most often, the recirculating system is installed in basements or under the steering wheel.