Yes.
Roughly speaking, for every ppm of chlorine added via dichlor (sodium dichloro-isocyanurate, or other names), you'll ALSO add a ppm of CYA (stabilizer, CYA). (The actual ration is 9 ppm of CYA for every 10 ppm of Cl)
I normally ONLY recommend it for use when you are TRYING to increase stabilizer.
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