The answer to 'how to maintain emergency plumbing' is to regularly inspect and maintain your home's plumbing system to prevent emergencies. This includes checking for leaks, clogs, and other issues, and addressing them promptly to avoid water damage and costly repairs.
It's important to know where your main water shut-off valve is located in case of a plumbing emergency, and to keep a plunger, plumber's snake, and basic tools on hand. You should also familiarize yourself with the location of your home's water heater, sewer lines, and other critical plumbing components.