We used our pH meter included in the package from the Plant the Moon Challenge for the first time, and the results were a little suspicious. So we did some testing on and off camera and found out that the meter was not giving accurate readings. <br /> <br />For others who may be using this pH meter (the Model 1845 Rapitest Digital Soil pH Meter), here are our results: <br /> <br />Substance (pH): Meter Result <br />Potting Soil(5.5): 7 <br />Compost(6.5): 7 <br />RO Water (5.9): 6.1 <br />Vinegar (2.5-3): 5.1 <br />Tap water (7.5-8): 6.7 <br />Buffer solution (4): 4.8 <br />Buffer solution (7): 5.8 <br />Buffer solution (10): 8.9 <br /> <br />Very inconsistent across the board. If you want to do good soil testing and don't have the money for a very expensive pH meter, we recommend using distilled water and pH litmus paper instead, as most sub-$100 meters are likely going to give you pretty poor readings. <br /> <br />----- <br /> <br />Check out our instagram! https://www.instagram.com/rainbirddelalune/ <br /> <br /> Plant the Moon Challenge (#plantthemoonchallenge): https://plantthemoon.com/ <br /> <br /> Lunar Highlands Simulant (LHS-1) fact sheet: https://sciences.ucf.edu/class/simulant_lunarhighlands/ <br /> <br /> Buy us a coffee! (small payments in support of the project): https://www.buymeacoffee.com/rainbird <br /> <br />#independentscience #plantthemoon #astrobotany #indoorgardening #moongarden #plantlover #plantthemoon #plantthemoonchallenge #NASA #Moon #Mars #Space #gardeninginspace #Artemis #livingonthemoon#competitionsciences #science
