Most sailors are familiar with Thor Heyedrahls adventures aboard his balsa raft Kon Tiki. Some may remember the self-rescue line that they dragged behind the boat. Since the raft travelled so slowly, this last chance line gave a fit sailor a sporting chance to haul himself aboard.
When applying a paste cleaner, a toothbrush is useful for buffing tight spots and working into the pores of welds; follow by buffing with a cotton cloth. A green 3M scrubby pad helps for removing more aggressive stains. Continued rusting in welded areas might indicate a developing failure, requiring replacement. Rinse thoroughly with fresh water and mild soap when done buffing.