I had to dig up part of my patio to move electrical conduit. So I removed it all and re-compacted the stone - amazingly it is not as 'level' as it was before I started... Only dug up about 20 sq ft of stone. Any way, waiting for more than a day without rain or cold. I have 130 square feet. Picked up 21 bags of sand - turns out to be half of what I need as the undulations etc. in the stone surface seems to be a bit off. It poured yesterday and even though they were in plastic, the sand is like mud. So I just spread some out to dry. I'm worried that if I start with mud-sand, by the time I get around to finishing, I will have dry sand for the next half. Will it matter if I start putting down the square cement 2" blocks on very wet sand and then later using dry sand? A hot tub is going over a section of this.If not for all the snow in March I wouldn't be asking this now... I'm using that bagged stuff from blue store in the purple bags.