Well I don't unblock toilets for a living. But those who do are told by immigration there is a high demand for plumbers and then arrive here to find that they must spend a fortune and are unable to easily find work. I am an electrician and we get it even worse, we have to train for 1 year upon arrival and it finishes with a trade test the same as Aussie apprentices do despite passing all the criteria to get in the country. Now I accept that there are differences but they are not hugely different. Put it this way during my years gap training i was taught LOL! how to wire sockets and lights in a house the same way as they did in the 60s in the UK, and had to cover a lot of electrical theory stuff that I had forgotten from when I was in my teens. They never once touched on anything to do with lndustrial, Commercial installations. So did my gap training teach me anything seeing as i don't do electrical work in houses? It taught me that the reality of being a spark or plumber over here is very different from the dream that we are sold in the UK. You are not told of these requirements by the DIAC or migration agents. I knew before I arrived because of forums like this one.