Everyone’s water chemistry is different, so the pH of your water will vary based on the starting pH levels of your water. Alkaline is defined as having a pH above 7. AquaTru’s pH + Mineral Boost Alkaline VOC filter will raise the pH between 1-4 pH levels throughout the life of the filter, with efficiency reducing as you get closer to 600 gallons, but it will always keep the pH above 7 throughout the full life of the filter.
If you’d like to maintain a higher pH, replace the filter in your countertop AquaTru purifier every 300 gallons or 6 months instead of the usual 600 gallons or 1 year. If you use our Under Sink purifier and would like to maintain a higher pH, we recommend changing it every 180 gallons or 6 months instead of the usual 360 gallons or 1 year.