The answer to 'pipe rusty water' is that rusty water is a common plumbing issue caused by corrosion inside the pipes. This can happen over time as the metal pipes deteriorate, or if there are problems with the water supply. Symptoms include reddish-brown or orange-colored water coming from the taps.
Some common causes of rusty water include old galvanized steel pipes, electrolysis between different metals, or mineral buildup in the pipes. The best solution depends on the severity and underlying cause. For minor issues, you may be able to flush the pipes or add a water filter. But if the pipes are severely corroded, you'll likely need to replace them, which is a job best left to a professional plumber.