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I'm thinking about getting into the plumbing and heating business. As a kid, I worked with my dad who is a contractor, but never went through a systematic study of the basics needed to have a good foundation of knowledge. I can still do things, but need advice. Where can I go to learn what I need while I'm still working a job to support myself. I have a few days a week to discipline myself for study. Are there good on-line programs or any part-time opportunities available where I can get the basics through on the job training? I appreciate your advice on this! Thanks in advance to all who have time to respond!