Vick,
I'll assume its an anchor line. That's the wrong place to use old rope. Three strand is some of the cheapest rope. Go to Ebay and replace. A local chandlery might have it on sale right about now. Walmart sells 3/8 x 100 ft anchorlines for about $30. The last thing you want is your rejuvenated line to part in a storm, leaving a $100 anchor firmly set in mud and a boat worth thousands rolling mournfully on sharp rocks.
I'll assume its an anchor line. That's the wrong place to use old rope. Three strand is some of the cheapest rope. Go to Ebay and replace. A local chandlery might have it on sale right about now. Walmart sells 3/8 x 100 ft anchorlines for about $30. The last thing you want is your rejuvenated line to part in a storm, leaving a $100 anchor firmly set in mud and a boat worth thousands rolling mournfully on sharp rocks.