Box of Salt?

Sir Alex

Dragon the eel (below)
I'm going to be buying some salt from foster&smith and I was planning on buying the box. It's a better deal at $0.21 per gallon mix vs. the bucket which is $0.27 per gallon mix. In fact they both cost the same even though the box is 40 gallons mix more. So I was wondering if there was a reason why most places don't sell the boxes and why I haven't seen many people using them. Do you have to put the salt in a container after you open the box to prevent it from clunking up? If that's so, then I'll just get the bucket...