Once arriving home it is not unusual for dogs to try to drink great quantities of water. It is not that your dog didn’t have enough to drink at the kennel, but dogs often react to excitement by guzzling water. However, uncontrolled drinking is not good for your dog. So supervise your dogs water consumption when he first gets home. Let him drink for 15-20 seconds, then take the bowl away. After 20 minutes or so, give him another drink. Do this several times for an hour or two, then he should be fine.