Don't understand why you have a marketing type message that offers a calculation cost of savings from not drinking bottled water. It is not based on if the place searched has drinkable tap water or not. Also where do you get these prices?
As a tech demo it is fine - as a reputable source of information its on par with John Daly recommending Grey Goose to prevent Coronavirus.
This site is contributing to confusing or mis-information about tap water quality. For those who don't take the time to consider your sources, it is doing them a dis-service. You should label this at the top as a non-scientific tool of evaluating of tap water. It almost seems like you are working for a bottled water company.
The cost-saving from not drinking bottled water is not necessarily dependent if the water is drinkable or not, as water filters are widely available and can offer substantial savings -> https://home.howstuffworks.com/save-money-with-water-filter1... The prices are taken from Numbeo and are the average prices for 1.5L bottles. I am aware this is not a perfect calculation method, I am planning to add a cost-saving calculator soon which will offer more flexibility.
Regarding the reputable source of information, you are right. Country-level data can never be a good decision-tool to chose if you can drink tapwater somewhere or not. It has to happen on an area-basis and include scientific reports, which are hard to get as of 2020 as there is no single source/database/API for that, except for very few countries (including the US and Austria), I'm working on that and I'll try to improve the UI so it reflects that one should check the water quality in the area of interest rather than the country itself.
I thought that might also be prone to inaccuracies. For example, I live in North York (a burb of Toronto) in an area where our water is paid for in the taxes. So we'd probably save a whole lot more than the estimate by not drinking bottled water. Since it is part of our taxes, we would still be paying for the taps even if we opted for bottled water.
On a serious note, Italy indeed has some tap water problems https://en.wikipedia.org/wiki/Water_supply_and_sanitation_in... , although common sense and the internet telling me that I'd rather drink tap water in Italy than in Tunisia...
The data sources are linked on the website. I plan to add scientific reports on water-levels soon on a city-level.
I want to raise awareness on how saving money and the environment often comes hand in hand when it comes to drinking water. For most people around the globe drinking straight tap water or using a water filter is a better solution than giving money to bottling companies like Nestlé!
I'd like to monetize this by either adding affiliate links to water filtration systems. Hope this helps! I think plastic pollution is one of our greatest challenges right now and I’d like to contribute to fixing that.
However, I live in Vancouver, and when I went to Chicago last year, the tap water was unbelievably bad (tasting). Even the complimentary bottled water in my hotel was bad.
Water at my place is very good though, almost as good as some of the best bottled water, and way better than mediocre bottled water.
In what pertains to the EU, that might not be legal and may lend you in trouble. If you haven’t yet, you should make sure you’re allowed to do that (or even better, don’t do it).
For example, here is per capita consumption of bottled water in Europe in 2017, by country:
So perhaps pull more information up to the top level? At least on desktop?
One pattern of use is "exploring the world". On desktop, this might involve clicking once to get the little popup, with a side-effect of unpredictably zooming and panning the map; then clicking again to get an info page; and then back page to return to the map. For every country of interest.
I wonder if this could be made lighter weight? The country outline is nicely highlighted upon mouseover. One might imagine adding much of the info page core content, somewhat abbreviated, to a slightly larger popup. And even showing that popup upon mouseover (with perhaps a delay, or mouse velocity tracking for intent). So then one might simply mouse move around the world, seeing water quality, bottle availability, etc, and able to more easily spot "oh that's neat".
What are you using for the city/country autocomplete?
Yes I am using Awesomplete with some custom CSS and loading the autocomplete results on page load (I figured that's more performant in my case than loading it on each keystroke).
This year I went abroad for a business trip. In the hotel, after washing my hands or taking showers, I found I couldn't rinse off the soap. I was so confused because it was so hard to do it, plus I brought my own soap. I inspected, smelled, and tasted the water carefully and didn't find any difference. In the end, I learned there is such a thing called 'hard' water.
Conversely, I suppose the buildup of limescale might surprise me if I were to spend time in an area where water is significantly "harder".
If you care, ascorbic acid or one of it's salts line sodium ascorbate reduces chlorine and chloroamine. Takes just a tiny amount, works instantly.
 Chlorine -> chloride. chloroamine-> chloride + NH3.
I was initially surprised by the Toronto/Mississauga results, but then I remembered Mississauga had one of the best mayors they could have possibly asked for, until she retired after serving her office for 36 years. She must have been doing something right.
I always bought bottled water there, that decision felt justified when my water came out sandy one day. (Though I suspect the building). I had friends who drank tap water for years and were okay, so mileage varies.
For some, that is an issue. For some that is an advantage (protein!!). For most, it makes no difference.
But I wonder how common such a thing is outside NY, and what other surprises our water contains.
LOL GTFO. This is nonsense.
This is true everywhere in the world, is it not? What are you judging if not the municipal water supply?
This is not the same across the world, in countries like Switzerland, for example, you can drink the tap water virtually anywhere, while in some African countries this is not even true for the capital cities.
Eg. Hong Kong: WHO says it's safe. CDC says it isn't.
One suggestion: If the top-level advice is that water from a country (eg. Japan) is that it's safe, it would be useful to call out particular places in that country where it isn't. (eg. Fukushima in the case of Japan)
Russia is a vast country, but as a former local (north-west region) I'd say that it's generally not a good idea to drink tap water there. I haven't talked much about water quality intentionally, but I believe everyone I know holds a similar opinion, and doesn't drink unboiled tap water.
It could be "safe" in a sense that one probably won't get sick from occasionally drinking it, but anecdotally - in comparison to bottled water, tap water is of questionable quality just about everywhere in Russia.
Unless we talk about separate kitchen taps with reverse osmosis systems. Even then, most people I know, don't drink that water directly but only use that to fill the kettle for boiling.
Personally, I think the water boiling thing is one of the dumber things they do because, at least in most of the big cities, the thing that is most likely to be wrong with the water is not bacteria and other things that would be killed by boiling your water but rather heavy metals (and, last I checked, boiling my water does not remove lead!).
Also, anecdotally, I've yet to die from drinking from drinking unfiltered Tomsk tap water & never noticed abnormal levels of anything nasty during blood work. I think there is a lot of paranoia about the water system here that has generally been undeserved over the past decade or so.
The taste and suitability to make tea differs wildly w/o impacting health (matter of carbon content). And it's not quite clear to me, whether the amount of chlorine should affect the listed water quality. Some people are sensitive to it, I'm not. And you can always let it sit for a while and the chlorine will evaporate.
You won't be able to map out every individual house with it's copper/plastic/lead piping, but watershed maps might be nice for this. Also would look way cooler. :)
But in spain for example I could never find a tab, I could drink of - way too much chlorine.
Someone in the chat was kind enough to provide me a good water quality source for Hamburg, if anyone is interested here is the link: https://www.hamburg.com/residents/housing/12792124/water-qua...
Is this a taste issue or a health issue?
But officially science says currently no, chalk in water is not a health issue and maybe even good.
(but I would not be surprised, if that changes in the future, like with many other things)
Belgian tap water is horrible compared to Dutch water. Source: I lived in Brussels for 5 years. Could be just the brusselonian water, but there is a reason that bottles water is a thing that everyone buys in Belgium and practically nobody buys in the Netherlands.
Apart from that Belgium tap water is perfectly safe to drink! I don't know specifics about the tap water in Belgium but something as simple as a carbon filter removes Chlorine and a lot of the bad taste!
I have been to Belgium before, to Brussels and Leuven, as far as I remember I liked the tap water better in Leuven, but that's just anecdotal. What I want to say with that is that tap water usually varies from area to area.
Whatever correlation you are imagining in South America is completely spurious, even with your litany of reasons to exclude anything that doesn't fit your worldview. Most every government on the continent has switched between left- or right-leaning governments at least once in the last decade, and I assure you tap water quality changes much slower.
Brasil, for example, switched from Da Silva (left) to Bolsonaro (right) just a little more than a year ago. And, oh, look: the map's CDC data is from 2018: https://www.cdc.gov/healthywater/drinking/data/index.html
The Scandinavian countries that are frequently cited as examples any advanced nations' left strives to imitate are obviously killing it on drinking water quality, as well.