I've had some great advice on here before and i'm back for some more - mainly about adhesive choice.
I built a gazebo in the back garden earlier this year and have put a hot tub under it. The concrete has been down for 3 months and it'll be 2-3 months max before i start this job, so still quite "fresh". I plan on using
standard dotti r9 tiles (prob 300x300) straight on to the concrete, but as the concrete is so new i'm not sure if i should use a decoupling mat (if so, which one?) and i have no clue what adhesive i need and how thick i should trowel it.
The tub is 2.1m x 2.1m and would easily tip 2.5 T when full of water and people. Ideally i need something that will cure up quickly enough that i can get the hot tub moved back on to it in 2-3 days max - even if i had to wait maybe another few days before refilling it. It also needs to be suitable for outdoor use and easy enough to work with for a DIYer. I could tile around the tub without moving it, but it would probably look a bit half-assed and would have the potential to retain water underneath the tub, which i don't want. The total area is roughly 9m2.
Any advice, tips, pointers gratefully received.