I asked this on another forum and it didn’t seem that anyone was understanding me there so I figure I’ll try here.
I still have seedlings going so I’m still using distilled water but when I transition over to tapwater I have a question. I have to use well water as the grow is located remotely indoors. As it comes out of the tap, the water contains a high value of CO2 because it’s well water. Generally most well water measures low in pH due to how the water is filtered through the soil back into the ground. I believe the processes that occur in the ground the deeper it gets become anaerobic and oxygen doesn’t work in the process. So when the water comes out of the tap it’s around 5.9 or so. Once aerated, especially outside, the pH comes up higher than 7 due to the CO2 being removed.
The question I have this time is, does anyone else use well water and if so are. you aerating it to bring up the pH and remove the CO2 prior to taking your measurement?
My concern is that taking a measurement then adjusting WITHOUT aerating will likely cause an incorrect reading depending on what happens to the pH of the water and soil once the water hits the soil and “breathes”. Does this cause the pH in the soil to go up due to CO2 being released once it hits the soil or sits in it for a while?
I guess another question I have is does the excess CO2 in the water hinder growth due to there possibly being excess CO2 released in the soil around the roots when the roots actually need oxygen?
If anyone has checked this out would you recommend aerating with room air to stabilize and THEN adjust before watering or adding nutes?