hahaha dude I love you.
You got everything I told you to get really fast.
Your plants are going to kick ass.
btw are you going to use any nutes?
How to measure/adjust pH levels in your water:
Firstly, if your not filtering your water in any way and are using tap water: Leave your water sitting out in the open air for like 24 hours. Water Treatment Plants add chlorine (among other things) in the water to keep it clean. Chlorine will evaporate off the water in 24 hours.
Info on pH: Okay, so anything above 7 is considered alkaline, anything below 7 is considered acidic. pH ranges from 0-14. The pH range your looking for, for growing cannabis is between 6.5-7.
If you want to learn more about how certain nutrients get absorbed according to the pH click this
Note that pH works in the same way dB do. (decibels - a measurement of sound) does. It increases x10 every step. So a pH of
7 is 10 times more alkaline than a pH of
6. and a pH of
8 is 100 times more alkaline than a pH of 6. Get it? You don't really need to know that but it's something that might save you a little time with figuring out how much pH up/down is needed.
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Okay so bust out your pH meter and test your water, submerge the sensor piece into the water and turn it on, let it sit there for like 30 seconds before you take down a reading as it can change/fluctuate. Now start by adding DROPLETS of ph up/down to the water. Mix it up, and test again. Keep adding whatever you need until your meter is reading between 6.5 and 7 (You can fine tune the pH for some strains for optimal nutrient uptake. Some like it more acidic/alkaline than other strains)\
IF YOUR ADDING NUTES TO THE WATER: Realize that nutrients can alter the pH, generally making the pH go more acidic. If your adding nutrients
add the nutes first, then test pH. THEN add ph up/down.
I'd calibrate your unit every few weeks. Or, however often you'd like. You will notice it takes longer to get pH readouts over time with no calibrations. Also, you only need the calibration solution (7.01) to touch the sensor, you don't need to submerge it. So you can use a LITTLE tiny amount of calibration solution and it will work.