* Unsuccessful attempts result in the loss of .05kg [[lye]] and .30 kg [[mortar]]
* Can not be used in deep water.
* Can not be used at to raise a corner until it is 40 slope, after that it is too steep slopes, giving the message ''the concrete would only flow away''to add. (The exact slope is 26)
* Can not be used on any corner of a cliff tile regardless of slope
* If used to raise the corner of a surface rock tile, the surrounding area must also be rock.
[[Category:Babel/C]]