| I feel sorry for you. Some times vexxing things do happen. But it really should be impossible for water to come out of the stem if the rubber washer at the bottom of the new stem is tight against a new seat, AND the seat is in tight and not leaking in it's own right (which can happen by the way, and some people like to wrap teflon tape around the new seat threads and/or pipe dope.
When you are installing these stems are you making sure the stems have the washers backed into them and stay there and are not binding up while you tighten the big nut down? I always check for this as I tighten, by spinning the stem back and forth some.
Other than that, you must still be having a packing issue around the stem, or an o-ring issue inside of it. You may have to take back out your stem and then unscrew the two halves of the valve stem. Then make sure you have the o-rings in place and that they aren't chewed up, and that they have round, not flat edges to them, and fit tight, and that you lube them with a coating of silicone grease or plumber's grease, and when you reassemble the two halves by screwing them back together, you should feel this nice initial resistance feeling when the bigger outer half of the valve stem slips over the the stem part with the washer on the end of it and that has the o-ring in it.  |