The bulk update request #12734 is pending approval.
create implication helium_tank (249) -> air_tank (503)
create implication oxygen_tank (311) -> air_tank (503)
create implication hydrogen_tank (0) -> air_tank (503)
create alias gastank (0) -> gas_tank (235)
change category gas_tank (235) -> invalid
create alias airtank (22) -> air_tank (503)
create alias hellium_tank (0) -> helium_tank (249)
create alias helluim_tank (0) -> helium_tank (249)
create alias hueluim_tank (0) -> helium_tank (249)
Reason: Alternative to topic #60813
Edit: Another thing to note is that gas tanks contains gasoline not just any gas like helium, but most of the posts are misusing the tag so it would better to nuke it or at the very least cleaning it up
Updated