id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13194	How to map a processing basin in a wastewater_plant? Validator and presets are not very helpful.	mdk	team	"In the wiki I found the following taggings:
* landuse=reservoir & reservoir_type=sewage (http://wiki.openstreetmap.org/wiki/DE:How_to_map_a)
* natural=water & water=wastewater ( & optional landuse=basin) (http://wiki.openstreetmap.org/wiki/Key:water)
* landuse=reservoir or natural=water & water=wastewater (http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dwastewater_plant)
* natural=water & water=wastewater (http://wiki.openstreetmap.org/wiki/DE:Tag:man_made%3Dwastewater_plant)
* landuse=reservoir is **deprecated** (http://wiki.openstreetmap.org/wiki/DE:Tag:landuse%3Dreservoir)
* landuse=reservoir is **not deprecated** (http://wiki.openstreetmap.org/wiki/Tag:landuse%3Dreservoir)
The validator complain about water=wastewater (""Value 'wastewater' for key 'water' not in preset"").
Also the validator knows nothing about the reservoir_type key (""Key 'reservoir_type' not in preset"").
But the validator has a rule for ""reservoir_type without landuse=reservoir or water=reservoir"".

I think validator and presets should support at least one schema (old or new) or both (if there is no consensus). In the wild there is a complete mess. Today I saw:
* natural=water & water=reservoir
* man_made=waste_water & natural=water & water=reservoir
* man_made=waste_water
* man_made=waste_water & water=reservoir
* man_made=water_tower & water=reservoir
* man_made=water_works
* man_made=wastewater_plant
only for the basins where the water is processed in a **single** wastewater_plant! :-)"	enhancement	closed	normal	16.08	Core validator	latest	fixed