Sticky coating on galvanised waterer

[SpotTheCat]

I bought 2 galvanised waterers they seem to have a sticky coating on them. Any idea what it is? Should I remove? How should I remove it if I need to? I have tried scrubbing it with dish soap and it has not come off

 

[Acre4Me]

What brand?

 

[GC-Raptor]

I have a Little Giant galvanized fount and feeder.
It says to rinse before first use.
I also have a Harris Farms galvanized fount and feeder.
It says to wash with dish soap and water.
I washed all with dish soap.
I don't remember anything sticky on any when I bought them, but the Little Giant's had an oily film if I remember correctly, but it washed off. GC

 

[Acre4Me]

I have a Little Giant galvanized fount and feeder.
It says to rinse before first use.
I also have a Harris Farms galvanized fount and feeder.
It says to wash with dish soap and water.
I washed all with dish soap.
I don't remember anything sticky on any when I bought them, but the Little Giant's had an oily film if I remember correctly, but it washed off. GC

We gave both brands. Ditto your comments.

 

[SpotTheCat]

What brand?

I don’t think it has a brand, we just found them at a feed store