Sewage lines back up all the time, and when that happens, somebody has to go in and investigate the cause. If you're willing to be that somebody, you might earn a decent living from it. Sewage inspectors can make up to $18 an hour. Assuming 50 weeks of work per year, and 40 hours of work per week, that's $36,000. But because this is the kind of job that often lends to overtime (which is typically paid at a higher rate), you might find that with a little hustle, you're nearing the $45,000-a-year mark, which isn’t bad for job you can get with just a high school diploma.
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