Can the exhaust pipe be cleaned by pouring water into it?

[VanAdriana]

The exhaust pipe should not be cleaned by pouring water into it. While it is acceptable to clean the exterior of the exhaust pipe, pouring water inside is not recommended. If water remains in the exhaust pipe, it may be sucked back into the engine during startup, causing significant damage. If carbon deposits form in the exhaust pipe, it is advisable to use specialized cleaning agents for removal. Different materials of exhaust pipes may require different cleaning methods. Carbon deposits in the exhaust pipe result from incomplete combustion of fuel in the engine, leading to a layer of black carbon buildup that is difficult to clean. Specialized chemical cleaners can be sprayed onto the deposits, left for some time, and then wiped off with a cloth to remove some of the carbon. However, deposits inside the pipe are not easily cleaned.