i have a dripping shower head made by price pfister. it is roughly 11 years old (made ca. 1994). i have replaced the o-ring and used plumber's tape, but still get the drip. i noticed the drip turns into a slight, but steady, stream of water when the shower head is removed. so this leads me to believe the drip is caused by the shower handle. any suggestions. if you need serial numbers, please let me know. also, the shower head is similar to the moen "tear drop", but it is a little wider at both ends. thanks for your help.