I will be doing 25 centerpieces this weekend for a wedding reception. Glass vase 12 inches high by 8 inches wide, cylinder. 10 tulips totally submerged in water. Had a time getting the tulips, they should be here tomorrow. Tulip was the brides choice. The bride was told by her WC to insist that her floral designer use distilled water to keep the flowers from floating and keep air bubbles out of the water. I have done smaller vase like this with tap water and havent had a problem. But working with tulips could be different. Any advise would be greatly appreciated. :help: