helicopters falling in sand base

While leveling sand for pool base a million helicopter tree seeds fell in sand. HELP PLEASE! Can't find pool store with straight answer. Do I need to be concerned? Laid drop cloth, sand and days of leveling. Planned to put pool up but now I fear helicopters posing a threat
 
Thank you for the responses. Being new here I kept looking at my inbox for a msg. Oops..What I did do: sand eas very well packed so on hands and knees i handed pick all I could on surface one by one, then hand skimmed the surface to find anything that was just below the surface. Next on my list: deciding on what size sand filter pump system I need. :)
Thank you again for the responses
 
If you're looking for a new pump, get a 2 speed to save on the electric bill. As far As sand filter, go with the biggest one you can afford. Bigger is better when it comes to filters.
 
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