the request to isolate the whole smoke/ fire system wasn't met with great enthusiasm.
Love the way that was worded

Anyway, I'm sure we have dealt with some of this stuff in the past and the pre warning was given about what systems can be used.
Anyway checked with John Bolton (who seems to be the oricle on all things carpet) and he said low moisture bonnet would be fine, just don't over wet and don't run too dry.
Did the job, came up a treat with no issues.