How is the SPA assembled and installed?

SPAs are sent fully assembled, all you have to do is place it on a flat and stable surface, preferably concrete. Once it's been placed, you'll have to connect it to a 220V electrical socket with a grounding point that can withstand 2KW-10KW (depending on the model). This installation will have to be carried out by a qualified electrician.
You will find all the details in the user's manual for outdoor SPAs.