Has anyone experienced this?
In my home, tap water filtered through the BRITTA filter cup has TDS 28 ppm and PH 6.5. The PH of water decreases if it is kept in an open container because it interacts with the oxygen in the air, which lowers its PH. Distilled water with TDS 3 ppm only has PH 7 when it is produced. After that, its PH drops to 5.6 due to the oxygenation reaction with the oxygen in the air and it becomes more acidic.
In my home, tap water filtered through the BRITTA filter cup has TDS 28 ppm and PH 6.5. The PH of water decreases if it is kept in an open container because it interacts with the oxygen in the air, which lowers its PH. Distilled water with TDS 3 ppm only has PH 7 when it is produced. After that, its PH drops to 5.6 due to the oxygenation reaction with the oxygen in the air and it becomes more acidic.