Levi's not drinking water

[Celeste]

Ok, so this is not exactly a 'food' related question, but I don't know where else to post this :lol: . Im not sure if my 3month old bearded dragon is hydrated, or getting any water at all.
How much water do bearded dragons need? I have never seen Levi take in any form of water, except for the water I spray on his veggies. I give him barths every 2-3 days. I stopped misting his cage, because I read that it's bad for them. But even when I did, I never saw him licking/drinking any of the water. He also doesn't drink water when he gets a bath. He is shedding his skin for the second time in a month. The first time it was over in 1 day, but now he's been shedding for 4 days, and I don't know if this is a problem, or maybe not being hydrated?
I am new to bearded dragon care, and have no idea how long this should take, or what affects it. Having had only dogs, cats, parrots and rabbits, I am used to the amount of water they drink, and not used to a pet that I never see drinking anything!
O yes, I do have a water dish in his viv, just for incase

 

[Kaiser]

My bearded dragon does the same; he doesn't seem to drink from anything. However, from what I understand, they receive much of their hydration from their food (mostly from their vegetables), as well as during their baths. They don't actually have to drink while in the bath; although they do absorb a little bit of water through their skin, they actually get a lot of water through their vent. So even if they don't seem to be drinking, just keep up with feeding him vegetables if he'll take them, as well as regular baths. Though young bearded dragons are more susceptible to dehydration than adults, as long as his skin appears to be tight and healthy, you shouldn't have to worry too much.

 

[UnaidedSoul]

Additionally, you can tell how hydrated your dragon is by it's fecal.