What Causes Rusty Water From Hot Tap
Rusty or discolored water only from hot taps indicates corrosion inside your water heater tank. The sacrificial anode rod — a metal rod designed to corrode instead of the tank — has likely been fully consumed, allowing the tank itself to rust. If both hot and cold taps produce rusty water, the issue is your supply pipes.
Boise-specific factor: Boise's hard water depletes anode rods faster than average. In areas with 10+ GPG hardness (Meridian, Kuna, Caldwell), anode rods can be consumed in as little as 2-3 years. North End homes with original galvanized supply pipes can produce rusty water from both taps.
Signs You Have Rusty Water From Hot Tap
Watch for these warning signs in your home:
- ✓ Orange, brown, or rusty water from hot faucets only
- ✓ Metallic taste in hot water
- ✓ Rust particles visible in hot water
- ✓ Water clears after running for a minute, then returns rusty
Can You Fix This Yourself?
Run only the hot tap for 2-3 minutes. If the water clears, sediment may be the issue — a tank flush could help. If it stays rusty from hot only, the tank is corroding internally. If both hot and cold are rusty, your supply pipes are the problem.
If the problem persists or you're unsure, call a licensed plumber. Attempting complex repairs without proper tools can cause further damage and void warranties.
How Our Plumbers Fix Rusty Water From Hot Tap
We inspect the anode rod and tank interior. If the anode is depleted but the tank is intact, we install a new anode rod ($100-$200). If the tank is corroded through, replacement is the only option. For pipe corrosion, we provide repiping estimates.
Experiencing rusty water from hot tap? Call now for same-day diagnosis.
Call (208) 555-0199 — Free EstimateRusty Water From Hot Tap Repair Cost in Boise
Typical cost to fix rusty water from hot tap in the Boise area: $100-$200 for anode replacement, $800-$2,500 for tank replacement. We provide an upfront quote before starting any work — no surprises.
How to Prevent Rusty Water From Hot Tap
Inspect and replace the anode rod every 3-5 years. In Boise's hard water, every 2-3 years is safer. Consider a powered anode rod that doesn't deplete.
Frequently Asked Questions
Is rusty water safe to drink?
Small amounts of rust in water aren't typically harmful but indicate a corroding system. Avoid drinking it until the source is identified and fixed.
What is an anode rod and why does it matter?
The anode rod is a sacrificial metal rod inside your tank designed to corrode instead of the tank walls. When it's fully consumed, tank corrosion begins. It's the most important maintenance item on a water heater.
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