Should the dock wheel float or sink?

For most applications, the dock wheel works best when it is allowed to fill with water and sink. The wheel has one hole in the tread left from the manufacturing process. It is recommended that two, half inch holes are drilled to allow water to enter the wheel and air to escape. There are four dimples toward the outside diameter of the wheel (about 8-1/2″ from the center hub) on the hub side of the wheel, these dimples should be used as locations for drilling additional holes. If using the wheel on a heavy application such as a boat lift or a heavy dock, it may be helpful to have the additional buoyancy from the floating wheels. To keep the wheels from filling with water, a silicone caulk or sealant can be used in the single manufacturing hole to keep water out and air in.