Most manufacturers suggest replacing the sand every 5yrs. when the corners wear off, the sand rounds and doesnt catch debris. it also packs faster. if you are having short intervals between backwashing, it is a solid indication that sand needs replacing
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Most manufacturers suggest replacing the sand every 5yrs. when the corners wear off, the sand rounds and doesnt catch debris. it also packs faster.
if you are having short intervals between backwashing, it is a solid indication that sand needs replacing