#disinfectants

I once added 1 part iodine to 9 parts water in a mixing bowl and used that in an irrigation syringe for irrigation.

Would i have been better off just using water? (for reference I have a WFR (wilderness first responder) certification with nols )

Iodine damages human cells as well as the bacterial ones (this is the same with pretty much all other disinfectants). This can slow healing and as far as it's been studied doesn't offer that much additional benefit as far as preventing infection. Plus it hurts a lot.

So like 99.9% of the time using plain water is going to give you about the same result as using a disinfectant or water/disinfectant combo. And it's going to be less painful and the wound may heal faster.