text: I'm trying to remove building=tank
  
  Here and Galway harbour are the main clusters, so I'm getting rid of those.
  
  I had done the work last night, but I was getting corrupt saves and lost the changes.
  
  Once I get the count below about 20 http://stat.latlon.org/ie/latest/tags-b.html will list them individually, so I'll be able to target the individual ones at warehouses, factories, etc. So I'll make the changes later, even if they get to be deleted soon.