Our pool contractor quoted Tahoe Blue in our build however we really want Tropics Blue because of the deeper aqua color and shimmer of the abalone shell. Upgrading from Tahoe blue to tropics blue (which ha abalone shell) upgrade fee $4K) 72’ x 22’ pool. Per Stonescapes manufacturer the abalone has a life expectancy for water sparkle of 5 years. Then it just looks like white specs. Has annyone experienced this? I haven’t found anyone to ask that’s had it very long. Thanks.