The encouragement of the Church that the faithful avail themselves frequently of her sacraments is to be understood to apply also to the season of Lent. The “fast” and “abstinence” which the faithful embrace in this season does not extend to abstaining from the sacraments or sacramentals of the Church. The practice of the Church has been to empty the Holy Water fonts on the days of the Sacred Triduum in preparation of the blessing of the water at the Easter Vigil, and it corresponds to those days on which the Eucharist is not celebrated (i.e., Good Friday and Holy Saturda).
Hoping that this resolves the question with every good wish and kind regard, I am,