If you are looking for a way to measure the PH level of your water, or maybe you want to know the PPM of your water, here is a video that will share a tool that I purchased and tested out.
For beginners, the PH level measures, the acidity vs alkalinity of something, in this case - water. PPM on the other hand stands for parts-per-million. This value provides how much of your water is consumed by minerals, bleach, etc., in your water, compared to just water. The lower the number, the purer the water.
Go ahead and take a look at this video and give it an up vote if you are into natural gardening, permaculture, or hydroponics.