How long before fully dissolved?

[intenseimage]

I have a Brute can that I have been mixing SW in. When filled to the inner lip it is a full 25g. If, for simplicity sake, it takes 1 cup of salt to bring 1g of water up to 1.025 and I add in 12 cups ... approx how would should the water be mixed before the salt is completely dissolved and mixed thoroughly enough to test so that corrections can be made?

The water will be mixed with an MJ1200 and heated to 78*

[Randy Holmes-Farley]

Stirring overnight is often a fine plan, but less time can be used if necessary. 5 minutes can be enough if you stir vigorously enough:

How to Mix a Batch of Synthetic Seawater in Under Five Minutes
http://web.archive.org/web/20011217234403/www.animalnetwork.com/fish2/aqfm/1997/sep/bio/default.asp

:)