DawgHausanswered grow question 3 years ago As long as your using fresh water with no added nutrients and the PH isn’t drastically off you’ll be fine. You aren’t wanting your plants to uptake nutrients from medium (soil, coco etc) any more, so nutrient lockout due to the PH being off shouldn’t be a worry.
The principle of flushing of flushing is to flush out the nutrients you’ve been feeding your plants from the medium so that the plants can use up what has been stored in its leaves.
Good luck bro 💪