Assalam O Alaikum,
Body weight / 20…….it means that a person weighing 120 kg should drink at least 6 liters of water daily, I feel that practically; it is not possible.
A friend said that 2 liters of daily urine output is essential. 2 liters of urine ~ on the average means 300 ml of single urine …. 7 times a day, it is rarely seen.
2 liters of urine needs at least 3 liters of water intake, 12 to 15 glasses of water to be taken daily, it seems difficult.
1.25 liters of daily urine is a good sign to know that your body is not dehydrated, and some people may have these figures as 1.5 liters of 24 hours collective urine.