COCO COIR pH maintenance question

[herbgrower]

Should I maintain pH in the water that I am feeding and runoff water only or I have to maintain root pH nearby optimal? For example the growing medium that I have prepared for seeds has pH of 7.5-8 measured by soil pH meter(one with metal probe). The water I prepared has pH of 5.8. I use tap water which has pH of 7.7 and I adjusted it with pH down. In this case what should I do? Water the medium right away?

 

[oldjarhead100]

take some medium and mix with water shake it up then test the water for PH this is a little more accurate, I have a 30 Gallon res ,I mix nutes in a 5 gallon bucket then add to res then top of with plain water ,I maintain Ph in res so I know whats going in ,I will check run off to make sure there are no problems , When you water in coco you have to water to runoff 10 to 20% to make sure the nutes don't build up in root zoneand cause a lock out if this happens then flush with plain water until ph is met

 

[herbgrower]

oldjarhead100 I watered the medium today. The pH of mix was 6.0~. The runoff water pH was 5.60~ in three out of four. I had one cup in which the pH was bit off at 5.40. What do you think?

 

[D.A.A.S.69]

Ojh, is probably hunting, but in coco, you want it between 5.5-6.5, as long as your close, you'll be fine, it ain't got to perfect, imo

 

[MDR]

You might want to invest in measuring your ppm too. I think this will help heed oldjarhead100 advice. I had to flush my coocoo and reset the ph and ppm. People in here helped me get there and the plants have been great since.

https://www.aquasana.com/info/education/tds-meter-what-is-it-and-do-you-need-it

 

[herbgrower]

D.A.A.S.69 Yeah I am keeping it in range. I got confused with soill metal tip pH meter. Now that I am clear, I am trying to maintain pH in mix and monitor pH in runoff. Does that sound right?
MDR sure, i'll get that right away. what is the ideal ppm? I am watching closely the grow. I mean it is still yet to begin seedling stage but if I see any variation in plant, I will flush it with balanced water. I lost one plant previously because of many issues. One of them was pH.