We need to disable Powerwash for all users, except for the owner, is it possible to do that?

Chrome Version       : 53.0.2764.0 (64-bit)
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari:
    Firefox:
         IE:

What steps will reproduce the problem?
(1)
(2)
(3)

What is the expected result? 


What happens instead?