The water quality depends on the source being the worst the undergrownd one. San Martín and la matanza have this.
No3 used to be 40 pon like in most countries of europe. You can drink it until 45 ppm.
However, if the water comes from the River, Then it is very soft: 1.5 kh, almost no calcium neither magnesium. No3 is about 5 ppm. (No3 means excrement).
They use chloride to kill Escherichia coli and dengue in summer time. They do not use chloramides. The first evaporates, the secon doesn t.
Soft water doesn t taste good. But the quality is good.
To clean the water deposit is important.
If you want a real filter, buy the ones the are under the sink with a jugué deposit for carbón and with uv filter.
Lack of manteinance in water tanks means that they migh be open and birds can drink from it. They Also leave excrements with parasites that only an uv filter kills.
Another option is to pay for a water test to a laboratory. It is not expensive.
Water is bad at Córdoba where it naturally polluted with arsenic.
I can relate to
almost all of this, being from a place, (San Diego County, in Southern California), where the water is full of minerals, and comes in large part from the Colorado River, which is polluted by radioactive run-off from an old nuclear storage site, among other things. In SD County, the water is treated with the chloramides you refer to, which cannot be evaporated or boiled off. And they just started adding flouride, (a toxic waste product of the aluminum refining industry), so I know about water problems.
Since I returned from overseas in 1978, I made a habit of buying water by the gallon from the dispenser machines, (bring your own container), which contain multiple treatment methods, including reverse osmosis, activated carbon, and UV. The price was 25 cents US per gallon (call it 3.85 liters) back in the day, and 35 cents US when I left a few months ago.
And I have noted that drinking water is a significant expense here. I wind up buying 2-liter bottles at the chino for 9 pesos, which works out to considerably more than 35 cents per gallon.
So what is the affordable solution, for a short-term rental?