[Rick Lee]

I replaced my kitchen sink faucet today and it was quite a job. I broke the flexible copper hot water line that goes from the wall under the sink to the faucet. No biggie. I sort of wanted to upgrade to those 1/4 turn valves anyway, so I did. I used telfon tape and tightened it all very snug. Both hot and cold valves from the wall leak now. They're not cross-threaded. There's teflon tape on both and now I've even packed it all with plumber's putty. No good. What to do here? I really need water in the house and both drip a little. How to fix? Tighten until I feel like it's gonna break? Use some kind of sealant or silicone?