I stopped using it myself ages ago due to finding a lot of metal in the bottom of mixing container and brightwell could not be bothered to even reply to my email even after emailing them twice !!!
My mate wanted some mixed so he brought his salt round even though I advised against the stuff !!
I took a vid but it's hard to see it's like metalic paint mixing
And the picture shows the metal left in bottom of mixing container hard to see on pictures but VERY metalic.
I've never had that issue with Red sea coral pro or Tropic Marin Bio Actif so clearly Brightwell still has an issue !!!
Makes you think what salt to not use !!!