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Spa coming tomorrow. Ground all prepped. See photo below. Hopefully it will survive the long trip from NJ to Long Island. I had the landscaper take away the grass and put a bed of smoothe sand down. The delivery guy is bringing me a spa pad. Even with the spa pad it would be worthwhile to compact that sand and then check that it is level by putting a straight 2 by 4 on edge and checking the level in both directions. You can rent a small plate tamper or "jumping jack" from your local rental store. the sand in the picture appears to be loose and will definately settle, possibly unevenly with the 4 to 5 thousand pound weight of your spa water filled.Post the pictures of your free, I am envious , spa when it it all set up.