im still confused, if he likes the spray and walks into it thats fine. in fact if hes walking into spray to get hydrated and drinks readily thats great (as long as the reason she walking into the spray is that hes not desperate for hydration)
just keep spraying as long as he keeps drinking, he will know when hes done. if youre using a hand sprayer and have to squirt squirt squirt at him thats gonn kill your forearm. and is a big reason a lot of chams are dehydrated. if youre using a hand sprayer go out and get a pressure sprayer. you pump it up a bit and it just shoots out for a while. no pssh pssh pssh bs.
you got pics i can tell you stright up if he looks dehydrated. and no worries dude im not gonna judge ya. if youre here for help that the best thing you can be doing