I found The Perfect Spa Vacuum!

[@PurpleDragonRykerRyder]

Thanks for the sand demo!! We are having a lot of issues with the sand storms we get here in the desert. Needless to say we need an actual vacuum for our hot tub to get the fine dust out of it.
Seeing that this thing does actually vacuum up sand was a big help!!☺️

[@rmreviews3000]

Glad it helped. We have a bit of sand here too, and this is a good unit for the money.

[@jaymac4448]

So it doesnt have to be submerged to run?

[@rmreviews3000]

It will run in the air, but you will probably burn out the motor if you do it for long.