I have one outdoor frost free faucet that has a hole in the stem (the part that the handle is attached to) that dribbles out water when the water is on. It is probably leaking about a gallon an hour when the water is on. Maybe not that big of a deal but I have a watering timer so in order for that to work the water has to be on all the time. The hole in the stem is drilled, as in its supposed to be there. Is this an easy fix for a relatively handy guy or should I call a pro. Thanks in advance for your help.