A bottle of Nestle’s water at the store cost 7 thb.
It is 600 ml or 0.6 of 1 liter.
You can buy a 20 liter bottle of water locally, if you pick it up yourself for 12 thb. (15 thb delivered).
That 20 liter bottle of water will yield the same volume as 33 bottles of water from the store.
Let’s do the math.
33 bottles from store X 7 thb each = 231 thb.
1 large 20 liter bottle 12 thb.
231thb – 12thb = 219 thb savings.
If you drank (4) 20 liter bottles a month, you would save 219 thb x 4 = 876 thb (US $28.00) per month.
That savings could pay for (22) 40thb meals.