Lets see, my Allen never purred until we got Pouncer (who purrs like crazy.) At first Allen's purr was so soft that you didn't know he was purring (you had to have your ear up against his chest in order to actually be sure it was a purr!) then it gradually got louder so that you can hear it... though its still considerably lower than Pouncer's.

We had a cat named Tiny when I was growing up, and he only drank out of the faucet too! I loved that and actually trained Pouncer ot do that, but it kinda backfired becaue he only wants it from the bathroom sink and is usually sitting in the sink when people need to shave or brush their teeth! A least he also drinks from a bowl.

Whata beautiful cat he is! You are lucky people to be chosen by him.