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Is it important to test the runoff pH and TDS/EC of it versus the ingoing pH and TDS/EC? If the outgoing solids get more than 30% higher than ingoing, should you lower your nutes, for example? If your outgoing pH goes up to 7.0 like I am seeing with an ingoing pH of 6.0, should I bring the ingoing down to 5.8 for example to try to bring down the runoff pH?
OR, not even bother to measure the runoff if all looks good with the plants?
Quote: GoonerHeClips said: Is it important to test the runoff pH and TDS/EC of it versus the ingoing pH and TDS/EC? If the outgoing solids get more than 30% higher than ingoing, should you lower your nutes, for example? If your outgoing pH goes up to 7.0 like I am seeing with an ingoing pH of 6.0, should I bring the ingoing down to 5.8 for example to try to bring down the runoff pH?
OR, not even bother to measure the runoff if all looks good with the plants?
Nah man your on the right track.
Quote: If your outgoing pH goes up to 7.0 like I am seeing with an ingoing pH of 6.0, should I bring the ingoing down to 5.8 for example to try to bring down the runoff pH?
Yes
Quote: If the outgoing solids get more than 30% higher than ingoing, should you lower your nutes, for example?
Yes, this will help to prevent salt build up and extend the time between flushes (depending on how long you keep your plants and what nutrients you're using).
-------------------- All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?
One "tip" I read recently was the phosphoric acid to drop pH with coco isn't such a good thing. Too much P affects the Ca and Mg adversely. So I am testing a product that lowers pH and has citric and lactic acid in it. I'm also going to dig out some old Earth Juice citric crystals and make it into a solution and try that.
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