Last week I flushed the engines (twin Mercruiser 350 MAG MPI with V-Drives) on my dry docked 2001 310 DA and I noticed that, when the engine was running, plenty of water was coming out of the starboard shaft, outside the boat. According to the surveyor's report when I purchased the boat, the shaft seals are Strong Dripless (the articulating hoses of the seals are blue, so I assume they are Tides Marine seals...). When I was flushing the port engine I didn't notice any apparent leak. Is it normal? Any suggestions? If the leak is abnormal, how should I fix it?