I think GIII may have been suggesting - he will correct me if I'm wrong - that the 'workaround' you (quite reasonably) had to implement resulted in a negation of the risk mitigation outcome which the special nozzle was intended to achieve. If you had to do it, others may have had to do it.
He has a carton of Cooper's Pale Ale on the line, and I'm guessing he's not planning on parting with it.