Sifto Salt Question

[cramar]

Thinking about adding salt to my new AGP, we have limited choices for pretty much everything where I live, wondering if anyone has experience using Sifto Crystal Plus.
It says 99.8% pure evaporated salt but then it also states "inhibits rust build up and stains"......after reading pool school I'm a bit concerned about that last one.

Thanks.

 

[Melt In The Sun]

I think that should be OK. The rule of thumb is 99.4% pure or better.

 

[HeidiP]

Did it work out ok?