Ninjadogma
- Posts
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- Joined
- Sep 27, 2024
- Points
- 263
Damn thing always read 7 , thoughtlook at me go im sOoO LUCKY
The potential for inaccuracy with those pens scares the crap out of me. I just had a pH pen delivered that was a good 1.5 points off out of the box!
Because of trust issues, I'm always checking my tap with some red phenol drops and then comparing it to what the pen says. Like an old actor turned politician once said, "Trust... but verify." Ppm/EC pen the same thing, I know we have about 400 ppm / 0.8 EC floating in our tap and if I get a reading far off from that I know my pen is lying to me. Checking it periodically will allow you to account for accuracy drift, and apply some "Kentucky windage," as those in sport rifling would say.