Nutrient lockout on DWC autos

Hey guys I have a nutrient lock on one of my autos. What’s the best method to correct this for a DWC? All I can find is for soil. Says to flush.

Same thing for Hydro set up. you can use the chemical additive if you want. I use flushes between plant cycles don’t know if it helps or not (between cycles) cuz I do it all the time.
I still consider myself new at this

You can and should flush in DWC: run distilled water along with a product like ‘Florakleen’ for a few hours and done.

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