I am having my deck that is in poor condition replaced. As part of the project, we are pouring a 4" thick, fiber reinforced concrete patio under the deck. Is there anything special that I should be doing at this time to prepare for having a hot tub on the patio in the future? Since there is not metal in the concrete we are using, I don't think I need to do anything special at this time for bonding but would love confirmation from someone more experienced. Thanks!

As long as there is no metal in the poured concrete, then nothing needs to be done for bonding, other than if there will be any metal handrails, etc, within five feet of the tub.

Exactly what I wanted to hear. Thanks TK!