So taking this into account – allowing your dog to drink from a communal water bowl is fine if you know it has been recently cleaned – however in most instances you will not know when the bowl was last cleaned, so it could be risky allowing your dog to drink from it. Often left outside cafes, pubs and pet shops – these bowls are seemingly left there for our convenience, but have you ever stopped to think how safe these are for our dogs, or wondered how long the water has been stood there for? A bowl left out at a park, for instance, may never have been washed properly, whereas a bowl left outside a pet shop, you would presume gets washed at least daily. If you need to let your dog use a communal bowl, it may be worth asking the owner of the shop or pub to wash it for you, just to be safe. Plastic communal bowls are possibly the worst type of bowl to allow your dog to drink from, as they are so easily scratched, chewed and generally damaged, creating a breeding ground for germs and nasty bacteria. There are a number of different bacteria and parasites that your dog is at risk of from water bowls. A number of pubs and restaurants that are dog friendly now keep clean bowls behind the bar which are to be asked for, which is brilliant as you know your dog is the only one who will be using it and it will be cleaned between dogs.