Hi, I'm a little confused with the results I get when I test my water.
Yesterday I tested the pH in my water straight out of the tap and it was the same as always: 7.5-8 (the colors for 7.5 & 8 are very similar)
Then I left a bucket of water to sit overnight and tested it today.
It tested out to be 7 pH.
I thought leaving it overnight would get rid of the excess CO2 thus making the pH rise but instead it decreased.
I measured the water to be tested with a syringe, added the reagent and set a timer. I followed all the instructions of the test kit.
I'm sure I'm missing out something and I was hoping you could explain this.