The laboratory procedures examine each section of the large plastic container seperately.



This gives the water levels and the flow between the upright tubes.

A corrosion reaction is the eqivalent of continually topping up one tube and syphoning it back into the first.

The water levels are maintained by the flow of the water.

In a corrosion cell the electrical equilibrium is maintained by the flow of the current.

The syphoning effect is the destruction of the metal.