Pour the pellets directly into the brine tank. Don’t be shy—fill it up to about halfway or two-thirds full. It’s not an exact science, but don’t overfill because the pellets need room to dissolve and move around. If you pack it to the brim, you’ll get salt bridges faster than you can say “hard water nightmare.”
Oh, and a confession: I once spilled an entire 40-pound bag on my basement floor. It sounded like a hailstorm wrapped in a tragedy. So, maybe do this over a towel or an old sheet. C’mon, learn from my mess.