Dealing with a malfunctioning bathroom fixture can be an incredibly stressful experience, but the truth is that most toilet repair jobs don't actually require a professional. Understanding exactly how your commode works and correctly identifying the root cause of the issue can save you significant time, stress, and money. Whether your fixture is running constantly, making strange noises, or simply refusing to flush, here is your comprehensive, step-by-step guide to tackling common problems on your own.