My PH solution says to add 1ml to a gallon of water. I just googled and it says 1ml is equal to 20 drops of water. I added 4 drops to a watering can that is approximately 30 ml and it lowered my PH from 6.8 down to 4.0. How can I accurately adjust my PH by just 0.1 to 0.2 PH?
I used a 1/4 tsp measuring spoon and let the 4 drops go into the watering can. What could I use that would be more precise. I am assuming that a drop of water is a drop of water whether it falls off a spoon or out of a syringe.
Also since I am not adding nutrients yet do I have to be too concerned with the PH of my water as long as it is in the 6.0 to 7.0 range? Thanks.
I am using the Apera PH20 and it seems accurate. I put it in the calibration solution before I tested and it read 4.0 and 7.0. I notice that when I put it in the watering can it will read 6.5 for example and then the happy face comes on. If I leave the meter in the water for a few more seconds it creeps up to 6.7 or 6.8. Do you go by the first reading once the happy face appears or let it stabilize and trust that reading instead?
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Add nutes first. then see if its not right then add a drop up or down to get to where you want. Wait till meter stops, stir pull out of water the put back in then read.
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If you run low solid water (low ppm) then don’t bother as the water will instantly adopt the native PH of the media. When adding solids to water this goes away as there is a lot more potential hydrogen (PH) in a solution than in pure water.
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Really hard to PH plain water. one drop will go past where you want sometimes
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If it’s under 100 ppm it’s just a waste of time and not necessary.
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I tested the TDS of my tap water and it was around 45 PPM. Pretty good for tap water. I then tested the water from my Britta pitcher and it tested around 30 PPM. I am using Fox Farm Ocean Forest which is supposed to be between 6.3 and 6.8 so I should be good then?
I am using the Britta water so I don’t have to let the chlorine evaporate.
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Yup. You are good. FYI TDS is inaccurate below about 50 ppm because, like PH, there’s nothing to measure.
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Thanks guys. I feel better now.
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