tony_g wrote:
I guess i should have said that I did try to take all the advice into
consideration. I used teflon tape on both the seat and the valve
stem
itself. It never leaks right after installation. It always takes
about two months before the drip begins. The valve is not being
cranked down as best as I can control since i do have children but
they
have been instructed to close down the valve very gently. I also
checked with some toothpaste on the assembly that it is not being
restricted from closing.

Tony,

Is it possible that there is something in your water causing the
problem? When our water company switched from chlorine to chloramine,
we noticed that everthing rubber in our plumbing systems eats up.
Toilet flappers won't last a year. Washers fall apart, O-rings too.
Washing machine hoses don't last as long as they used too. The o-rings
in my high priced dishwasher only lasted 3-years. Check with your water
company and see what they use as a disinfectant. Some rubber products
are resistant to chloramine, you may try a new brand of washer that is
resistant. If the seat is wearing out, there may be grit in the water.
Installing a new faucet won't fix that, but a filter might.

Just a thought.

Stretch