I have a new well. 5 inch submersible pump. After about 6 Weeks I'm getting lots of sand. Any

Guess you will have to put in filters or a sand trap or both. Suggest you try running the pump for a while to see if it clears up. "A while" is for a couple of days.

You will want to pump as much water as fast as you can. Might want to call the well driller back. He should have bigger pump.