Uncoated Lead Weights
Uncoated Lead Weights are designed with slots through which to thread a weight belt, allowing you to add or remove weight from your belt as needed for different dives. If you rent weights, these are most likely the type you will come across.
Since different underwater environments can affect your buoyancy, being knowledgeable about how to make adjustments is an important skill to cultivate. Do some test runs with the different types of scuba weights in a swimming pool. You can rent or borrow different weight types and belts to try them out, allowing you to experiment and find what works best for you. Proper weighting means good buoyancy, which should be the goal of every diver on every dive!
Importance of proper weighting
Proper weighting when diving is the foundation of good buoyancy. The correct weight helps you make smooth descents and ascents. It allows you to comfortably hold position during safety stops. Carrying less weight, and therefore having less drag, also means your gas consumption (or SAC rate) should go down. And, as your overall scuba technique improves, correct weighting helps you achieve better trim in the water. This in turn helps you fin and maneuver smoothly.