Most of the goods sludges up on the bottom of the jug. Many fall short, or if using the last of a partial bottle overshoot by a mile. It's really only useful when using the whole jug, and only if it's fully rinsed into the pool.They supposedly gave her liquid CYA but when I got home there was no CYA in the pool at all.
For that and being much more expensive we rec avoiding it altogether.