The removal of Pb(II) ions from aqueous solutions of perchlorate, nitrate, tetrafluoroborate, chloride and sulfate, pH 2, has been investigated in a cell with a reticulated vitreous carbon cathode. It is confirmed that the Pb(II) may always be removed. There are, however, marked differences in the conditions necessary and the performance attained by the system (eg, rate of removal, current efficiency), even with these nominally similar, aqueous acid media. The origin of these differences are investigated.