Why should two two iron bars and two aluminum rods be used in a water heater?
This method is usually used by pure water machines and manufacturers. But it has been exposed so many times that it is hard to cheat any more.
The purpose of these techniques are to deceive others that water quality is bad, in fact, can only show that water conductivity is large, and the quality of water is not necessarily associated.
Iron is used to dissolve iron ions into water, so that the water appears to be of different colors.Aluminum is used to coagulate and cause flocculation and turbidity in the water.
