That'll be it. It has happened to me.
Urea hydrogen peroxide is your answer - the Otex ads on TV are scary but it is effective.
My Dad swears by a spoonful of warm olive oil in the old plughole.
Urea hydrogen peroxide is your answer - the Otex ads on TV are scary but it is effective.
My Dad swears by a spoonful of warm olive oil in the old plughole.
