Can I wash the car warm water tank with a car wash gun?

First of all, the warm air tank is in the cab. If you want to flush it, you need to remove it first!

If you just wash the engine water tank outside, that's ok, but only if the engine is cold. If you just started, it is recommended not to rush immediately!

Also, in the process of washing, the water gun should be turned into fog, otherwise the radiator will be washed up to the heat sink! Lead to poor heat dissipation performance!

I hope my answer can help you!