I received my PH & TDS/EC meters today…. and I�...

Read and article or two from a reputable source. Literally could write a book answering your question.. and they have.

should come with instructions on how to callibrate... simply push a button, dipin a baseline solution or 3 and it's good to go. keep track of what you mix... you dont have to pH test every time. Spot checkign is good though, or when you see symptoms is also a good time to check.. when everything is going well, not much reason. In 4 ytears, my tap water changed drastically 1 time.. it killed 75% of seeds sowed bc i was adjusting pH of tap water down to 6, or so i thought. my tap shifted from 8.4 to 7.0. So, as long as the inputs don't change, pH will be consistent based on the products you use.. if it needs 3mL or acid or base to correct pH, it will always need that amount.. .until one of the inputs change. then, you need to make sure it's still properly affecting pH. soil slurries and runoff are not a precise indicator of substrate pH... runoff is likely higher than what is in the put, for example. soil slurries will give you inconsistent information if you use differinve volumes of water.. the water you add should be a known pH so you can guesstiate a weighted-average for slurries. The more runoff that drains away and more that comes out will be closer to what is in substrate but still lagging or leading depending on context.

Throw that ph pen right in garbage they're just that garbage, inaccurate not really sure if they were properly calibrated properly but they're garbage, I would get some ph litmus paper, with a range of 5 to 8 with 0.4 incremental changes and they will give you the necessary information you need, ill post the brand I have when I get a min...As far as the TDS/EC pen it is what it is for the price it will give you a ball park reading with a bit of +or- but accurate enough to get the job done.....There are plenty of videos on YouTube to give you a tutorial on EC and TDS best practices and I would suggest starting there...Best of luck

I don't know your meters mate but they should come with some instructions on how to use them. They should also have come with some calibration fluid for the Ec meter and some Ph7 or Ph4 solution to calibrate the ph pen. Some ph pens require ph7 fluid others ph4 and some both. The Ec meter tells you how strong your solution is and the ph meter tells you the ph of the solution. Depending on your preferred growing medium to what targets you need to hit. Coco/hydro range from Ph5.5-Ph6.5 with sweet spot near the middle. Soil Ph6.0-6.8.

ph acidita' dell' acqua ,le piante di cannabis preferiscono un acqua leggermente acida quindi quando prendi l'acqua per irrigare puoi misurare l'acidita il range perfetto per la canapa in terra è 6/7 6 leggermente acida 7 neutra se vai sopra al 7 avrai un acqua alcalina meno adatta e puo' causare scompensi nell assorbimento delle sostanze nutritive ,succede la stessa cosa con un acqua troppo acida meno di 5 per correggere questi scompensi esistono dei correttori di ph uno acido e uno no quello acido è il ph- quello piu alcalino è il ph+ .. per quanto riguarda l'ec misura la quantita di sostanze disciolte nell'acqua piu è fertilizzato piu l'ec è alta esistono dei range da rispettare ti lascio un link dove spiega queste cose meglio di me... https://growace.com/blogs/learning-center/ph-and-ppm-knowing-what-your-plants-are-eating-and-how-much-they-can-handle

Msweedster they came with a manual with directions. I suggest reading it to properly use and store them.