Check Valve Weight
Found in filter. Weight from the flapper from the check valve.[1]
Skimmer Basket with Weight
Skimmer basket with weight on bottom.[2]
Gizzmo
Used to plug skimmers when winterizing pool.
Spa Jet Air Adjustment
Sitting on top of the coping on the shallow end is a screw in plug when unscrewed water pours out.[3]
This is an air adjustment for for a spa jet.
