Title pretty much sums it up.
I replaced my kitchen fixtures & all stop valves, feed lines, etc. For the unsoftened (drinking) water tap, I had to replace 3 feet of copper leading to the stop valve, and I used a galvanized 1/2" 3' nipple.
Right off the bat, the water had a really nasty taste & smell until enough water is run to empty what was in that length of pipe. Afterward it's OK. Initially I can draw a glass of water and it tastes OK, until the water that was sitting in the pipe reaches the faucet. At that time, I can smell the water right away.
I thought a little time should allow for a little corrosion on the pipe wall & the problem should cure itself. It hasn't, though, and it's been about three weeks. It has eased up in intensity, though.
So the question is: Should water smell & taste lousy for a long time after galvanized pipe is installed? It has an oily, metallic smell & taste.