Quote Originally Posted by stinkyattic
The final step of a correct flush is watering with a complete fert mixed at 1/4 strength.
The pH test that's cheap but still accurate is a little bottle of drops and a vial that you mix with a few mL of your water or nute solution and it turns color depending upon pH. It's called an 'indicator solution'.
even though I have been using distilled water this whole time can flush with tap and just strt using that?