At the end of the day - with regards to the PH test, as long as the colour is not overly 'yellow' and not overly 'pink' then you are in the ball park so to speak.
I would not get hung up too much on whether it is 7.2 Vs 7.4 or 7.4 Vs 7.6.
You could always test the sample which is 7.2 PH to give you an idea of exactly how orange-yellow that looks like in the flesh. Use that as a guide for the bottom end of your PH range.
I have had a bit of rain over the last few weeks (enough to backwash twice) but in reality my levels have not really moved enough that it became noticeable to me.
Yeah, I’m trying to not get too hung up on it. It’s definitely not too yellow. Not even orange. As for too pink - that’s what I’m trying to determine. Good to hear your levels didn’t change much with the rain. That’s one less thing to worry about.
I just retested the ph. Trying to compare to photos above. It’s definitely dark pink but I don’t think super hot pink but then I do need new glasses! Want to take a guess?
