Hi, how do you make sand out of Flip solver? I have been reading and hearing a lot about flip solver being a sand solver but I can't understand how its done. I'm guessing the look of it has something to do with viscosity but thats about it. Do you render it or use points differently? Can someone share how its done generally? Thank you!

It's usually about playing with viscosity.
You could try Eetu's approach, he posted a file in his thread on Odforce.

http://forums.odforce.net/index.php?/topic/8471-eetus-lab/page__view__findpost__p__94209 [forums.odforce.net]