Mixing water and wine

In Paul Turner's Blog by Paul Turner

Q:  May the priest mix the water with the wine in a large pitcher from which all the wine is poured—for the priest and for the assembled community? The Missal speaks of the water being poured into the chalice (not a pitcher or any other communal vessels).

A:  The USCCB clarified this on page 19 here: http://www.usccb.org/about/divine-worship/newsletter/upload/newsletter-2012-05-and-06.pdf. However, it did not address your specific practice. I generally add water to one chalice. However, your practice would probably not be considered an abuse through a broad interpretation of this clarification.