Quote:
Originally Posted by SpeshulEd
You should be fine as long as it doesn't have silica in it.
I use 3m Color quartz, it's around $20 for a 50lb bag.
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There is lots of silica in poolfilter sand. In all sand.
And yes, your rays will be fine.
"The
chemical compound silicon dioxide, also known as
silica (from the
Latin silex), is an
oxide of
silicon with a
chemical formula of
SiO2 and has been known for its hardness since antiquity. Silica is most commonly found in nature as
sand or
quartz, as well as in the cell walls of
diatoms. Silica is the most abundant
mineral in the
Earth's crust."
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