The trend today is DIY. However, do it yourself plumbing needs much more knowledge, skills, and experience than many might have thought. In general, we do not recommend DIY plumbing works for your home. Too many times, we try in vain and often make a small leak turn into a faucet that will not turn off at all. Then you are in an emergency situation and must pay out even more money to fix the problem.
If you still want to do it yourself, you need to understand that plumbing system is complicated. You need to understand the plumbing system in your house well, such as which pipes are for the water supply and which are for waste, and what materials are those pipes made of. You also need to have the proper tools. Lastly, you also need appropriate training and skill sets. Here is an brief video to give you some basics about plumbing. It would be a good starting point for beginners.
If you are not comfortable doing it yourself. You can hire an experienced plumber. A licensed plumber like plumber West Chester PA has the proper training on plumbing systems and has better knowledge about repair part or the entire plumbing system. They may save time and money for you as you don’t need to have no water for days while you try to find time and proper tool or equipment to fix the problem.