I see that Ace Hardware, on their corporate web page offers 'Aqua Quartz® 50lbs Pool Filter Sand (61308)'. I am going to look further, one would think that since the Pentair Triton TR140C requires 275# of pea gravel and 650# of filter sand that this would be easily found.

I also see there is a alternative material called 'Zeolite'. I am not sure of this is worthwhile. Anyone using this?