How much should I drink? Well it's complicated but it's been estimated I need 50-60 ml of water for each kilogram of body weight. And while dogs are always filling up with water, I don't always drink as much as I need.
Obviously if I am fed wet food I will need less water than if I am fed dried food. Tap water is just as acceptable as filtered water - and rain water outside may be preferred anyway. It all depends on my personal preferences.
The bowl makes a difference too. I prefer to drink from a bowl that is NOT next to my food bowl. I am not a human being drinking as I eat. I drink separately.
Best of all would be a choice. A bowl in the kitchen, perhaps and one in the bedroom for a night time sip. And, for cats allowed out into the garden, a bowl of rainwater would be lovely.
Cheers. Help me drink more.