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Nope, that is what the HS manual says... mine says it too. I chose to use the dichlor after use and MPS weekly program instead. Works great for me. Never tried it the other way.
What then, I wonder, is the idea behind the MPS daily/dichlor weekly routine?
So how much dichlor should I use after each use? The Jetsetter is only around 225 gallons and for weekly shocking it says to use only 1 1/2 teaspoons. And if I use dichlor for daily use, should I use MPS for weekly shocking or stick with the 1 1/2 teaspoons of Dichlor? I didn't know owning a hot tub was going to bring back bad memories of chemistry class!!