i'm sorry. i'm a newbie, i don't know what ppm is. the ph is around the 6.8 mark. i let the water sit in gallon juggs over a few days with the cap open. i don''t do much for nutes. i use foxfarm ocean forest for soil. i did give them a bit of miracle grow. that might have something to do with it maybe. i tried flushing but i don't think i used enough water. if i flush, is it safe to flush from the faucet and water with ph corrected water. and also i know soil needs to dry out for the roots to breath, is it safe to let the soil stay a bit wet till i figure this out?