May I know which sands to use? Left is silica sand for pool filter and right is construction sand (strained myself). The construction sand has a smell. My place has no playsand

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BENTISM 24 Sand Filter Above Inground Swimming Pool Sand Filter with 7-Way Valve

Features angular-shaped sand that provides maximum entrapment of solids, optimizing your pool filtration abilities ensuring that your pool water is

US Silica 50 Pound Mystic White II Non-Corroding Non-Staining Premium Swimming Pool Filter Sand Refill for Even Flow Rate, White (2 Pack)

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U.S. Silica 50 Pound Mystic White II Non-Corroding Non-Staining Premium Swimming Pool Filter Sand Refill for Even Flow Rate, White (2 Pack) : Patio, Lawn & Garden