How To Top Up That Carboy After Racking Wine

Best piece of advice I got from one of my very good friends, Mike Sears. He suggested using marbles to make up the difference in volume after getting the sediment out of the bottom while racking wine. Says it serves a great dual purpose - it holds the sediment in place while siphoning and also makes for a great inert filler to make up volume, against the dreaded enemy of home winemakers: exposure of too much surface area at the top of the carboy. I will take some pics and upload them!!