Question:What are good ways to test for pH levels and where can we get materials to do so?

by stevie |

I'm interested in exploring a few different options for testing pH levels. Looking for resources to explore on this!

I'm a little familiar with PH testing for aquariums (usually strips or vials) and soil for planting (vials or sensors). What's nice is that these tools are generally very easy to find and pretty affordable (there are lots of PH measuring tools marketed to home or hobby users, so depending on whatever else you might want to be testing along with the PH there may even be an all-in-one tool available.

I also recently came across some DIY methods, using vinegar or baking powder to test for acidity or alkaline reactions (divide into two containers, make a sludge, see what provokes a reaction)... there's even a test that relies on observed color change in water colored with red cabbage leaves. Would be interested to set some of these tests up to compare to one another!

Ooh, just spotted this paper about a DIY open source pH monitor. Let's reach out / look in to this!

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0193744

Is this a question? Click here to post it to the Questions page.

I was on Amazon and found a bunch of pH meters under $20. Supposedly good from 0-14 pH, but that is very unlikely. Still, for the cost, it would be worth considering. Resolution was only 0.1 , but still, not bad. Reply to this comment... Looking into some test strips as well. Here's a couple options:$8.40 from office depot: https://www.officedepot.com/a/products/458819/Learning-Resources-pH-Strips-7-12

Is this a question? Click here to post it to the Questions page.