No I'm not saying that all diyers will be incompetent.
But if they don't KNOW they're competent then they won't be.
It's not like someone's going to do a tightness test correctly by guessing, is it?
Are you saying it's ok for him to do things because he MIGHT NOT make a mistake?
It's Donald Rumsfeldt's "Unknown Unknowns" which will catch him out.
Subjectives on whatever you/I think is irrelevent.
I don't think they should, and at the fundamental review 06/07 50% didn't think it was a good idea, but did they ban DIY gas, NO because they didn't think it was a problem.
They did say they would review the situation in 5 years 2011/12
