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You must be familiar with your home’s water supply system and drainage systems before you can tackle plumbing repair. First, get familiar with the locations and functions of emergency shutoff valves, main water shutoff valves, water heaters, and water heaters. You will then need to learn about how they function. It might take some time to learn these things and work with them. However, such sacrifices of time could pay off by saving money on hiring a plumber every time.