Reef Salt Buckets - Ok for Water Storage?

[Olof]

I've gathered quite a few empties. Wondering if they're safe for storing top-off and ready made saltwater. I assume they're okay ( no phospates, etc ) but just wanting to be sure.

Thanks.

[gone fishin]

I use them for all sorts of stuff tank related.

[Misled]

Ditto!!^^^^

[Olof]

Thanks for the responses.