Nobody wants to turn on the hot water in their sink, tub, or shower and see brown or discolored water flowing out. It’s unsettling, and it raises immediate concerns about your water quality and plumbing system. Rusty hot water can be caused by several factors, including bacterial growth, pipe corrosion, water heater issues, or mineral deposits in the water supply. The good news is that many of these problems can be fixed, and in some cases, they can be prevented altogether.
Why Is My Hot Water Rusty?
If you notice rust-colored water when using your hot tap, there are a few common culprits to consider:
1. Pipe Corrosion
- Many older homes have galvanized steel pipes, which are prone to rust over time.
- As these pipes corrode from the inside, rust particles mix with the water supply, causing discoloration.
- If only the hot water appears rusty, the issue is likely within your water heater or hot water lines.
- If both hot and cold water are rusty, the problem may be in your main water line.
2. Water Heater Corrosion
- Traditional tank water heaters have metal interiors that are exposed to water continuously.
- Over time, corrosion occurs, especially if the anode rod inside the heater has deteriorated.
- A failing anode rod can no longer prevent rust from forming in the tank, leading to rusty water.
- If your water heater is over ten years old and producing rusty water, it may be time for a replacement.
3. Bacteria Growth
- Iron-reducing bacteria thrive in low-oxygen environments and feed on iron in your water supply.
- These bacteria can cause a reddish or brownish tint to the water and create an unpleasant odor.
- This issue is more common in well water systems but can also affect municipal water supplies.
4. Sediment and Mineral Deposits
- If your home gets water from a well or if there’s recent construction in your area, sediment may enter your water supply.
- Clay, sand, and rust deposits can build up in your plumbing system, causing water discoloration.
- Flushing your water heater or installing a filtration system can help remove these contaminants.
5. Water Main or Municipal Supply Issues
- If your entire neighborhood is experiencing rusty water, the issue may be with the municipal water supply.
- Water main breaks or routine maintenance can stir up sediment and rust within the system.
- Contact your local water utility to check for updates on maintenance work.
How to Fix Rusty Hot Water
Once you’ve identified the possible cause of rusty hot water, here are some solutions to address the problem:
Flush Your Water Heater
- Over time, sediment builds up at the bottom of your water heater tank, contributing to rusty water.
- Draining and flushing the tank at least once a year can help remove sediment and improve water quality.
- If you’re unsure how to do this, a professional plumber can perform the maintenance for you.
Replace the Anode Rod
- The anode rod is a crucial component in your water heater that prevents rust by attracting corrosive elements.
- If it’s heavily corroded, replacing it can extend the lifespan of your water heater and prevent rust from forming inside the tank.
Shock Your Water System
- If bacteria are the issue, disinfecting your water system with chlorine can help eliminate them.
- This process, known as shock chlorination, should be done carefully to avoid over-chlorination, which can damage plumbing components.
- A plumber can perform this safely and ensure the correct concentration is used.
Check and Replace Corroded Pipes
- If your home has old galvanized steel pipes, consider replacing them with modern materials like copper or PEX.
- This upgrade improves water quality and reduces the risk of rust and corrosion in your plumbing system.
Install a Water Filtration System
- Whole-house water filters can help remove iron, sediment, and other contaminants that cause water discoloration.
- If your water comes from a well, consider installing an iron filter to reduce iron-reducing bacteria and rust buildup.
Consult a Professional Plumber
- If you’re unsure about the cause of rusty water or how to fix it, a licensed plumber can diagnose the problem and recommend the best solution.
- They can inspect your water heater, pipes, and filtration system to ensure everything is working properly.
When to Replace Your Water Heater
If your water heater is over ten years old and consistently producing rusty water, it may be time for a replacement. Signs that your water heater needs to be replaced include:
- Rusty water that persists even after flushing the tank.
- Strange noises, such as rumbling or banging, from the heater.
- Leaks around the base of the unit.
- Inconsistent water temperature or a lack of hot water.
A new water heater can provide better efficiency, lower energy bills, and improved water quality. If you’re considering a replacement, a professional plumber can help you choose the best option for your home.
Professional Plumbing Services in Durham, NC
Rusty hot water can be frustrating, but it’s not something you have to live with. Whether the problem is coming from your pipes, water heater, or municipal supply, Acme Plumbing Co. is here to help. Our expert team provides water heater maintenance, pipe replacements, and water filtration solutions to improve your home’s water quality.
Don’t wait until the problem gets worse. Contact Acme Plumbing Co. today to schedule an inspection and enjoy clean, clear hot water again. Call us at (919) 688-1348 to book an appointment.
