The nutri is calibrated with 7 and the other has pen has these
Im just venting frustration that I use 3 or 4 different pens every week and do trust anyone of them. I know some like to read high and some low and just go with it
Congrades man you be a smoking
You have to mix those with distilled water
And I’m outta
So if it stays at 4 it’s good to go ???
I have the 7.0 sulotion already mixed should I just use that it came with the white one I’ve been worried that my ph is gonna kill my plants
Think you should be able to cal both with the 7ph
It says only off 1 ph here’s with the 7 buffer
I got like 5 different one I’m gonna have to buy a good oneSo is that good and ok to use ???
I always test my reader against good old fashioned ph tape reader in a test tube.
Do you know if the ph strips are any good
Yes very much so. When I calibrate I confirm with ph strips.
My first ebay ph tester failed the test every time. My Hanna tester doesnt skip a beat
I tryed all mine there outta wack gonna grab the 100 $$ dollar one but the one I bought for 11 bucks is ture I’m returning 4 of em
6.86 solution is what that pen is supposed to be calibrated at. The 4 and 9 are supposed to verify it’s readinf correctly.
Ok that’s the trick I new it said u gotta test all three I just did it at 7 buffer works just a little off but thanks that solves my problem
For distilled water can I use boiled water I don’t know where to get it
grocery store distilled water is not bottled water. Most decent sized supermarket or Walmart will have it. Also you can order it online at Amazon