Wikipedia: Plumbosolvency is the ability of a solvent, notably water, to dissolve lead. In the public supply of water this is an undesirable property, in (usually older) consumers' premises plumbosolvent water can attack lead pipes leading to increased lead levels at the tap. Mae gen i ryw restr fan hyn ā "toddyddrwydd plwm" arni ond dw i braidd yn amheus. A fyddai rhywbeth fel "y gallu i doddi plwm" yn well? Diolch ymlaen llaw. Siān