Cats and dogs both have an incredible sense of smell – indeed, depending on the breed, a dog’s sniffing power is around 10,000-100,000 times more superior than ours! So, even though we may not detect them, there are chemicals in tap water, which can give it a not-so-pleasant aroma which our cat’s and dog’s sensitive noses pick up straight away. Pet fountains will not only entice your furry friends, but most include filters that remove impurities from tap water and improve the taste and smell, again encouraging your four-legged friends to drink more.