Whew....it's hot! If you're hot, chances are your dog is hot as well. Be mindful of what he is exposed to during the day. If he's an outside dog, make sure he has shade as well as fresh water---and a lot of it! By nature, dogs' internal temperatures are hotter than ours (100-102 Fahrenheit), so this is another reason to do your best to keep him cool. Dogs can easily get heat stroke, just like people.
With an increase in water consumption, you'll notice an access of um, well---water output as well. Normally with hard to train dogs, I'll recommend removing their water around 7:00 P.M. to ensure a dry, comfortable night. However, I would definitely not recommend this if your dog has had a particularly active or strenuous afternoon. Give him an adequate amount of water after playing/exercising, etc. You do not want to let it get to the point where your dog is dehydrated. With that said, you might want to take into account the excess water consumption and take him outside to relieve himself a few more times than usual before bed.
If you're noticing accidents around your home--and if this is definitely new behavior for your dog, try to consider how much water he's taken in. Perhaps that is the culprit.
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