No.

Sand was already a million years old when it was bagged up to sell you. A few years inside your filter is nothing.

Gurgling is probably trapped air. Check that the water level is high enough that the skimmer isn't creating a vortex and that the skimmer flapper isn't jammed somehow.
 

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I rather just change the sand rather the cleaning it. Sand is only $9.00 for 50 pounds and it takes less than 1 hour to change it. I had my pool since 2011 and I have changed it once already, today matter of fact. Just vacuum the old sand out and replace it. :D
 
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