No idea what this work was. 7pm on a Friday.
Revert "No idea what this work was. 7pm on a Friday."

This reverts commit f4c82401106a6afd4eefd7302d63978236d1b793.
Merge branch 'feature/Effective_props' of https://github.com/jhinebau/OpenPNM into feature/Effective_props