So i transferred my Plum/Concord wine yesterday. I have 25 gallons made for my wedding this coming September. It still has that sulfur/fermentation odor. Is this normal? I read that if I had to, I could run the wine over sanitized copper and I should remove all of the odor. My question is, would a counter flow wort chiller work for this purpose? Any ideas would be greatly appreciated. Also, should I fill the wine with distilled water to the neck of the carboy? And if so, would leaving that space hurt the wine?