Problem draining outside tap

[b23]

Hi all,

I'm trying to drain my outside faucets for the winter (in a house I bought last year). Here's the problem I'm running into: inside, I shut off the water to the faucet. Then, I open the outside tap and it starts to drain. After an hour, there's still a trickle of water coming out. If I shut off the outside faucet and wait an hour, then when I turn it on, there's a quick burst of water and then it starts to trickle again.

Does this mean there's a problem with my inside shutoff valve?

Thanks.

[b23]

Well, shoot. All right -- thanks for the replies.

Is it just a matter of buying a new shutoff faucet, or is there more to that part of the system?

[b23]

It's one of those six-pointed wheels. And the outside tap is lowest.

So, I'd shut off the water main, open the outside faucet to drain the pipe. Then, replace the inside six-pointed shutoff wheel?