[PK]

Is adding a small amount of cider vinegar to galvanised poultry drinkers likely to have a deleterious effect on the drinkers? (That is, the water container, not the poultry).

[chrismahon]

Unfortunately the acid in vinegar strips the zinc plating off, so not only do you wreck the drinker but I think the zinc taste may put them off drinking it or even be bad for their health? The zinc drinkers we bought initially had a label on them saying that they were unsuitable for using vinegar, so when we did use it we switched to plastic drinkers.

[PK]

Thanks. I suspected as much.

[bazzais]

Interesting - thanks - never considered it.

[Womble]

the zinc taste may put them off drinking it or even be bad for their health?

Yes, the acid will rot their teeth