In article ,
says...

How long is it acceptable to run the system
without inhibitor in it.


I had always used Fernox .... when I had my new system commissioned, my
CORGI man (been in business 30+ yrs) told me he NEVER adds inhibitor, it is
not needed and just a marketing ploy.

Interesting view form a professional.

A professional who will benefit from all those systems that need repair
or replacement because they didn't use inhibitor?