Inhibition of the staining of porcelain surfaces by manganese

A dispensing article for use in the tank of a toilet which comprises a tank and a bowl, said article comprising independent first and second dispensing means which contain, respectively, a composition comprising a source of hypochlorite ion and a composition comprising glassy phosphate, wherein said respective dispensing means, upon flushing of the toilet, dispense into the flush water a sufficient quantity of their respective compositions to establish a hypochlorite concentration of about 3 ppm to about 20 ppm available chlorine and a glassy phosphate concentration of about 0.05 ppm to 10 ppm in the toilet bowl water at the end of the flush, and wherein said glassy phosphate has the formula MO(MPO.sub.3).sub.n M wherein M is sodium or potassium and n is a number of from about 6 to about 21.