Hi Richard, This has already been discussed here. Have a look to those threads please :
https://lists.openstreetmap.org/pipermail/tagging/2017-December/034291.html https://lists.openstreetmap.org/pipermail/tagging/2018-January/034932.html https://lists.openstreetmap.org/pipermail/tagging/2018-February/035119.html https://lists.openstreetmap.org/pipermail/tagging/2018-March/035306.html You can read the Talk as well https://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Hydropower_water_supplies Consecutively of all those discussions, ideas get more precise and some points have been changed in the proposal between December and now. The big benefit is to make the distinction between containers (riverbeds, pipes, tunnels, canal...) and content (water). As things are never perfect, we may have further occasions to improve tagging and wiki a little more. All the best François 2018-03-14 23:47 GMT+01:00 Richard <ricoz....@gmail.com>: > Hi, > > > https://wiki.openstreetmap.org/wiki/Proposed_features/ > Hydropower_water_supplies > > I think that the proposed invention of waterway=pressurized and its use > for water in pipelines as well as natural caves should get some > discussion in the mailing list. > > What do people think? > > Richard > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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