The tag content=water has been used over 24,000 times (mainly with man_made=storage_tank, sometimes with man_made=reservoir_covered), while content=drinking_water has only 62 times, so I would use content=water for storage tanks and reservoirs.
I agree that the drinkability of a storage tank of water is not readily observable, and that drinking_water=yes is generally used for features that provide drinking water, rather than merely containing it, as stated on the wiki page for that tag. - Joseph Eisenberg On 2/21/20, European Water Project <[email protected]> wrote: > And maybe it shouldn't be mapped that way because it is not observable. > > Up for discussion... > Thanks, > > Stuart > > On Fri, Feb 21, 2020, 08:25 Warin <[email protected]> wrote: > >> On 21/2/20 6:16 pm, European Water Project wrote: >> >> Hi Warin, >> >> contents=water seems more appropriate >> >> That does not stipulate if it is drinking water. >> >> >> Thanks, >> >> Stuart >> >> On Fri, 21 Feb 2020 at 07:38, Warin <[email protected]> wrote: >> >>> So a water tank with drinking water cannot be tagged as drinking water >>> because there is no local access. Fine. >>> Then it is only tagged as a tank with contents=water, or should there be >>> yet another value for it contents=drinking_water? >>> Or a sub tag water=drinking water... >>> >>> >>> On 21/2/20 5:10 pm, European Water Project wrote: >>> >>> Hi Martin, >>> >>> There are a couple of issues I see with drinking_water=yes not having a >>> concept of access. >>> >>> 1. Where is the observability ? How can I know if a water tank has >>> drinking quality water or just agriculture quality water ? >>> From the wiki : >>> "One can assume that the water is pure when many people drink it every >>> day." >>> This is hard to assume, and one would never know if there is water ... >>> >>> 2. But there is an even bigger issue --- and I will admit that I am >>> biased because of the European Water Project's use case. >>> For a map feature to be useful, it should have universality. Ie. if one >>> maps restaurants with toilets, at least customers should have access ... >>> Someone who goes to the OSM way where there is a water tank, even with a >>> wallet full of cash, will die of thirst before getting a drink. >>> It's similar to toilet=yes ... A restaurant with a toilet for >>> employees >>> only, probably shouldn't have the tag. >>> Yes, there is an access tag, but in most cases access is implied. >>> >>> drinking_water = yes, seems to come with access in 99% of the 61,300 >>> nodes and the large majority of the 8,178 ways. >>> >>> Best regards, >>> >>> Stuart >>> >>> >>> >>> >>> >>> >>> On Thu, 20 Feb 2020 at 19:33, Martin Koppenhoefer >>> <[email protected]> >>> wrote: >>> >>>> Am Do., 20. Feb. 2020 um 19:14 Uhr schrieb European Water Project < >>>> [email protected]>: >>>> >>>>> Dear All, >>>>> >>>>> I have noticed that the the key drinking_water = yes for ways is >>>>> sometimes used in a manner not described in the wiki. >>>>> >>>>> https://wiki.openstreetmap.org/wiki/Key%3Adrinking_water >>>>> >>>>> The issue has to do with ways which might store drinking water which >>>>> is >>>>> not actually directly accessible. I think this tag should be for >>>>> accessible water. >>>>> >>>> >>>> >>>> I don't read from the wiki description that the drinking water must be >>>> directly accessible. It depends on the context feature. >>>> >>>> Cheers >>>> Martin >>>> _______________________________________________ >>>> Tagging mailing list >>>> [email protected] >>>> https://lists.openstreetmap.org/listinfo/tagging >>>> >>> >>> _______________________________________________ >>> Tagging mailing >>> [email protected]https://lists.openstreetmap.org/listinfo/tagging >>> >>> >>> _______________________________________________ >>> Tagging mailing list >>> [email protected] >>> https://lists.openstreetmap.org/listinfo/tagging >>> >> >> _______________________________________________ >> Tagging mailing >> [email protected]https://lists.openstreetmap.org/listinfo/tagging >> >> >> _______________________________________________ >> Tagging mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/tagging >> > _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
