Mr. Maurice Buckley:

I would make the point that the existence of a standard is a reference point for what is best practice. It is a reference point for the purchaser and consumer and it is a reference point for the plumber. As I might have said earlier, even if it is not explicitly referenced in legislation and is, therefore, a voluntary standard, if a person takes issue and goes back to the plumber or, if necessary, goes to a court of law, they can say that this standard is here and this is best practice. In that situation the plumber is on the back foot because unless they can demonstrate that the method applied was for some reason better than that or an acceptable alternative, they are in difficulty whereas the consumer has the referenced standard to support their case.