About changing the water after heating of the electric hot water bag
Be careful because the temperature of the water vapor is very high
If you use salt is salt, it is impossible to explode. Salt is sodium chloride, neither combustion, and no explosive potential
Salt can be heated, for this reason, hot water bag used for heating should not be part of a complete circuit, need to rely on the water resistance circuit is connected, but as everyone knows the water is great, if adding salt, will become the electrolytic solution of sodium chloride, the conductivity increases greatly, the the circuit that can be heated. Pour the water out into the rust, is due to electrochemical corrosion, so that the water contains a lot of rust. If the explosion will true, because the gas expansion caused by it, Never mind and salt
