Issue with man_made element using Potlatch2


I just tried to demarcate and tag a water treatment plant using Potlatch2. The wiki page for map features ( lists dozens of values for the ‘man_made’ key, while Potlatch2 apparently only recognizes Silo/Tank. I entered the key-value pairs man_made=water_works (closest thing to a treatment plant) and area=yes on the Advanced tab of the key-value pair. Is this the proper method to do this?

The label for the treatment plant shows up now on the map, if you zoom in quite close, but neither the polygon outline nor filling are viewable. How should I address this?