I want to thank HealthPost for not only delivering my pH drops really quickly, but just even having this in stock. See, I bought an Alka Jug the other day at Wildearth Organics, in Tauranga, but they didn\'t have any pH drops, so I ordered the drops from you guys, and tested my filtered tap water, as well as my filtered tap water that went through the Alka Jug. The difference was AMAZING!!! The tap water was a neutral 7-7.5 - as I kind of expected, as it\'s already got a filter system, however the filtered tap water that, in addition, went through the Alka Jug, was a beautiful deep, dark blue, meaning it was more of an 8-8.5 on the alkaline side. It\'s good to know that both the Alka Jug and the pH drops really work!!! I don\'t think I\'ve been this excited about water, ever!\n\nThanks again for the quick delivery and having the pH drops in stock for a good price!\n\nI\'d encourage people to buy a bottle of pH drops and have some fun by testing the water at your local cafe, or even bottled water from the supermarket, and ESPECIALLY your tap water (you never know what nasties it has!). If you look on YouTube you\'ll find that there are many people who have tested some brands of bottle water, and found them to be pretty acidic! (not good for your body). So it\'s crucial to make sure that your water is at least neutral (7 or higher - green\'ish/light blue in colour), or alkaline (deep blue/purple\'ish in colour), on the pH scale.