Trying to hook up cold water supply to a hot water tank. I am using a brass shut off valve. I need to screw a brass nipple between the valve and the flexible hose that goes to the tank. The valve has a female opening and so does the flexible hose. I have put teflen tape on each end of the nipple but am having a slight drip on the end that goes into the valve. I have taken it apart twice, cleaned off the old tape from all of the threads and rewrapped the tape. I have wrapped the tape around three times and overlapped it while working from the open end towards the center of the nipple. I AM STILL HAVING A PROBLEM WITH A SMALL DRIP! HELP.
Thanks

Check you shut off valve if it is not the flare type if it is you need to replace your nipple with a fitting that will fit the shut off valve and the flexible hose, if it is not the flare type then use 5-6 turns of teflon tape, good luck.

How are you screwing the nipple in? By first screwing the nipple inti the flex hose and then tightening everything down? Try putting a wrench on the middle of the nipple and crank it into the valve first. Then connect the flex tube. Unless the threads are nicked that should you a solid connection. Good luck, Tom

If you used too short nipple and grabbed it with wrench over the threads, you may have indented threads. Also, brass is soft metal. Be careful so you don't squeeze the nipple making it slightly oval.

Otherwise, use more teflon tape. Use large channel locks: larger the tool, the better leverage you will have. Of course, the w/h flex line goes on as the last thing.