How do you get to the vibrating barrel in B3 of the Ghost Ship to get the Tetra Statue in Phantom Hourglass

To get it without making a Reapling appear listen closely... When you first walk into B3 on the Ghost Ship you'll see 5 levers coming out of the wall don't touch them. Just go around it but you'll get into a trap and have to kill 5 spiders. When you do keep going around until you see a purple crystal ball don't touch that either or else a Reapling will appear just keep going around until you see a stone sign read it and it will tell you the order of pulling the levers mark it on your map. Than when you do go to the 5 levers and pull them in that order. Than some spikes will go down go through that open spot but still don't touch the crystal ball. When you go through throw the cans until you see a yellow button on the ground step on it. Then the purple fire will disappear. Now here are the directions from the stone sign to the 4th sister. > ^ < down < ^. When you see a shaking can lift it up and throw it and you found the last sister.