http://www.sprinklercareer.freewebsitehosting.com/
Found from another site, good details:
Even now jobs are plentiful.
All it takes is two years at a community college at one of three community colleges in the country.
Entry level average wage is low to mid $30's.
Average wage with three years job experience is mid $50's to mid $60's with more available in larger metro areas. To give one example the average annual wage for an entry level technician in Omaha, Nebraska is $36,784.32, with $61,195.93 to someone with five years experience and $73,401.73 to senior level (ten years) technicians.
The majority of companies are union companies and while technicians are considered management most companies offer benefits such as medical, dental and retirement plans.
This is not a pipe fitter or installer job. Installers are suffering unemployment, 40% in some areas of the country, but unemployment does not extend to the technicians.
The work is not physical with 75% to 95% of your time spent in an office environment in front of a computer screen. The work is always challenging and fun, it is not a boring job.
This job is different from about any other in the universe because once fully certified (5 years) you don't get the boss and HR bullshit you hear about in other places of employment because you are not easily replaced.