Jon Elson wrote:

John Doe wrote:

We have hard water here, so vinegar is good for cleaning. I soaked
our garden sprayer in vinegar for three days.

THREE days?? No, you do't use vinegar that long!

You can use vinegar that long with other things, like glass and plastic.

Maybe a half hour, then flush with water. If not cleaned out enough,
repeat. But, don't leave the vinegar on more than about 30 minutes at
a time.

I will just avoid doing it. The idea that you can remove the lime
without damaging the zinc sounds far-fetched to me.