Hi,

Is it leaking through the diverter plug? If so you may need to go to a
plumbing supply house with the old one and replace it. it might just need
tightened or an O Ring replaced. If it is elaking there or dripping out the
faucett though it will need a washer and or valve seat replaced. probably just
the washer. To do this you need a valve socket to remove the valve and replace
the washer. Make sure you turn the water off and open the valve before you turn
it out. I hate to see you pay a plumber so if you can't handle this see if a
friend has ever done it pay them a much smaller fee to help you.

candice