I have two handle STEM STERLING 11L-11H/C faucet. I have drip from both hot and cold water from the shower head. To stop I have to tighten it very hard to the max, yet I get some drip occuring. I changed the stem 6 months back on cold faucet. What do I need exactly to do so that I can fix it right. Also when I installed the new faucet I had problem with the packing washer ( i had to cut it in length so as the knob easily turns, is that right way to do it.
Thanks in advance for your advice.
The stem faucet I have is as in the link
DANCO A015250B STEM STERLING 11L-11H/C