Spring Equinox is the best time to perform this rite. Use the pentagrams for water, face west when reciting the invocations, and wrap the wand in white, black, or blue silk.
In the holy and divine name of Elohim Tzabaoth (pronounced El-oh-heem Tza-bah-oth)
Whose celestial waters bore all the forms of creation,
I invoke you great Archangel Gabriel (Gah-bree-el), Lord of Water.
I entreat you to preside over this rite of consecration.
My your Angel Taliahad (Tah-lee-ah-had) guide my steps upon the path.
May the mighty Prince Tharsis (Thah-sis), Ruler of Water,
With the blessing of the Almighty,
Invest this Cup with the Sacred Powers and Virtues
Whereby I may perform the operations for which it is designed."
In the name of Elohim Tzabaoth,
And of the great Archangel Gabriel, his Angel Taliahad,
And the mighty Prince Tharsis, Ruler of Water,
I do command the Elemental Spirits of Water to recognize and obey
The Power invested in this Cup
And the Authority of the one who weilds it,
That they may take delight in assisting all its operations.