[Tagging] How to tag a cistern?

John F. Eldredge john at jfeldredge.com
Mon Feb 2 20:54:59 UTC 2015


On February 1, 2015 3:21:44 AM CST, Warin <61sundowner at gmail.com> wrote:
> On 31/01/2015 10:49 AM, S Volk wrote:
> >
> > Hi,
> > I've been mapping on Africa in HOT tasks and around, I've seen some 
> > cisterns, also know that some humanitarian NGOs have made many 
> > cisterns  on Africa (also water_wells).
> >
> > Question:
> > How to tag a cistern (it seems to be not like what is shown for 
> > "landuse=reservoir"; rather a small "man made" reservoir, on ground 
> > level or escavated, for either natural or treated water)?
> >
> > Or, in addition, since there are tags for "man_made=water_well, 
> > "man_made=water_tower", wouldn't it be worth to have a tag like 
> > "man_made=cistern"?
> >
> > Thank you in advance, regards,
> > Sérgio (user:SergioAJV)
> > svolk2 at hotmail.com
> >
> >
> 
> A 'cistern' has a mechanism for keeping a water level stable, commonly
> 
> used in toilets. And OSM has no tag for that feature (yet). They are 
> connected to a water supply with some pressure behind it.
> 
>   I'd think you want to map the provision of water?
> If it is 'drinkable' then the generic amenity=drinking_water would
> suit?
> If non potable then amenity=watering_place ?
> 
> If you don't know if it is drinkable then assume not, so use 
> amenity=watering_place ? Maybe add a note ?
> 
> 
> 
> 
> 
> 
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> 
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Once again, we are divided by a common language. In American usage, a cistern is a holding tank for captured rain water, used as an alternative to a well in areas where no city water supply is available. They often take the form of an underground pit with a waterproof lining.

-- 
John F. Eldredge -- john at jfeldredge.com
"Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that." -- Martin Luther King, Jr.
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