Stopping toilets from clogging is a function of keeping the toilet clear as well as keeping the pipes in the home clear. When the toilet is clogging often, it is best to make sure that the toilet is not being asked to flush a large number of solid products. Typically, the toilet should only be flushed with fluids. If the toilet is being overworked, it will clog. Also, the pipes in the house could begin to clog and force the toilet to clog at times when it appears that it should flush. It is best to contact annual professional cleaning services in order to keep your drains running smoothly.
Plumbers in Australia have licensing requirements that differ from state to state but it is generally accepted a 4-year apprenticeship with a further minimum experience of 2 years (6 years total) and a further curricular requirement as a benchmark for licensing. Licensed plumbers are also expected to maintain minimum relevant training requirements to maintain their plumbing license