Is it acceptable to limit the amount of water available to my dog?

My dog can’t quite handle our household schedule, he generally pees once at some point while I’m at work. Occasionally he poops, but he always poops on the same linoleum floor, so that’s not really a problem. He always pees somewhere different and I have to find it and clean it up. How much water does a dog need in a day? Is it acceptable to leave him less water when I go out for the day? What about none, is that just cruel? He really doesn’t do anything all day, just lays around until I get home (I think, based on days when I have worked from home). I kennel him at night to keep him from peeing during the night, and he’s just fine with that, but I can’t bring myself to put him in the kennel all day too. What’s the best approach here: limited water, kenneling, confining to one room, something else?