Why is my water brown after vacation?

Why is My Water Brown After Returning From Vacation? The Ultimate Troubleshooting Guide

Coming home after a relaxing getaway only to find your water flowing an unappealing shade of yellowish-brown can put a real damper on your post-vacation bliss.

While discolored water may seem like a worrisome sign, in most cases it poses no significant health risks. However, it certainly doesn’t look very inviting coming out of your taps and no one wants to shower or do laundry with brown water.

So what causes this discoloration after being away, and how can you get your water flowing crystal clear once again? Let’s start by going over the possible culprits and then discuss remedies to get your water back to normal.

What’s Causing the Brown Water?

After investigating many homes with sudden water discoloration after vacations or time away, I’ve found these to be the most common causes:

Sediment Buildup in Pipes
This is one of the most likely reasons you’ll return from a trip to find brownish water from your taps. When water sits idle within your home’s plumbing system, tiny mineral particles in the water can adhere to the insides of the pipes and settle out of the water column.

Over time, layers of sediment build up along the pipe walls. Common sediment includes sand, silt, calcium carbonate scale, iron oxides, manganese, and even bacteria and algae in some cases. Even small amounts of iron can cause an orange-brown staining.

According to the EPA, up to 70% of homes in the U.S. receive water from systems with iron concentrations high enough to potentially cause discolored water after sitting stagnant.

The longer your plumbing system goes without use, such as during vacations or long weekends away, the more sediment can accumulate. Then, when you return home and turn the taps back on, the sudden water flow stirs up all this debris and suspended particles, causing significantly discolored water.

Municipal Supply Changes
Another possibility is that your local municipal water department made some infrastructure changes or adjustments to the water source or treatment chemicals while you were away.

Sometimes water authorities need to perform maintenance on pipes, switch between water sources depending on availability and season, or alter the types and levels of disinfectants added. These changes can cause temporary shifts in the look, taste and odor of your home’s water supply.

I once returned from a 2-week vacation to find all my water had a strong chlorine smell and slight yellow tint. After calling the city, I learned they had recently increased chlorine levels due to higher bacterial counts in the reservoir supply that month.

Contact your local water municipality if you suspect they could be the cause of any color changes.

Corrosion of Pipes
The third most likely culprit is corrosion and rust, particularly if you have an older home. Over many years of use, metal pipes and fittings will start to corrode and rust from the inside out. This problem tends to accelerate when water sits idle for long periods.

According to the CDC, around 350,000 miles of underground iron service pipes bring water to homes across the United States. As these pipes age past their 25-50 year lifespan, corrosion releases more iron into the water supply, causing yellowish to reddish-brown discoloration.

Even small leaks caused by corroded joints can allow iron sediment to enter the water. Rusting steel well casings or well screens can also add iron particles to your water.

Let’s go over the steps you can take to get your water flowing clean once again after identifying the potential cause.

Troubleshooting Discolored Water After a Trip
If your water comes out looking dirty or discolored after returning from vacation, here are the best ways to troubleshoot and resolve the issue:

Flush the Pipes
The first thing to try is flushing your home’s plumbing by letting all your taps run for several minutes. This helps clear any loose sediment that settled in the stagnant pipes while you were away.

Start with the tap closest to the main water supply line and let it run for 5-10 minutes before moving to the next closest tap. Opening and closing the taps multiple times helps dislodge more particulates. Flush toilets several times as well.

Cold water taps will likely need to run quite long to start flowing clean – sometimes 15 minutes or more per tap. Hot water heater flushing may also be required.

Check any Inline Filters
Another easy first step is to check any inline water filters, such as under-sink, refrigerator, shower head or whole house filters. Over time, they can become clogged with particles, causing flow restriction and discoloration.

Replace filter cartridges if needed so your water can flow freely.

Contact Professionals
For ongoing brown water beyond a quick sediment flush, contact professionals to inspect for issues. I always recommend homeowners experiencing persistent discoloration call both a plumber and well contractor (for well owners) to properly diagnose and treat the problem.

A plumber can check for leaks, pipe damage, and corrosion issues that may need pipe replacement. Well owners should have their well contractor test water quality, inspect well components, and shock the well with chlorine if bacteria levels are high.

Here’s a quick flowchart summarizing the steps:

[Flowchart image]

Shock Chlorination
For private well owners, one effective treatment for stubborn brown water is shock chlorination. This involves adding a chlorine solution directly to your well to kill iron bacteria, algae and other microorganisms that cause issues like staining and discoloration.

The chlorinated water then sits in the well and plumbing system for 12-24 hours before being thoroughly flushed. I recommend homeowners hire their well contractor to perform shock chlorination, as they are trained to calculate the right chlorine dose and ensure proper flushing.

Install a Water Softener
In some cases, the underlying cause of recurrent brown water is hard water mineral buildup. Water softeners remove calcium, magnesium and other minerals that can accumulate in pipes and fixtures over time.

By eliminating scale buildup, you can avoid loose sediment being stirred up whenever water sits idle. I installed a water softener in my own home to reduce both hard water stains and brown water occurrences after vacations.

Replace Corroded Pipes
For severe corrosion and pipes that are beyond their functional lifespan, a full replacement of the affected water lines is recommended. Copper and plastic pipes have a longer lifespan than galvanized steel, lasting 70+ years.

Your plumber may suggest re-plumbing with copper, PEX or CPVC. For the main home supply line, type K copper is a good option. PEX is also corrosion-resistant but cheaper for interior lines.

Use Pipe Lining
Another option is CIPP (cured-in-place pipe) lining. This trenchless method involves inserting an epoxy resin lining inside the pipes to create a protective barrier against corrosion and leaks. Lining is less disruptive than a complete re-pipe.

Other Tips and Notes

• Don’t drink or cook with discolored water until the issue is resolved. Showering is safe though may cause surface stains.

• Cloudiness usually clears up quicker than colored water. Let water settle before using if just slightly cloudy.

• Check for a blue-green tint, which indicates copper corrosion – a water softener can help.

• Rusty water will often stain laundry. Avoid washing clothes until water runs clear.

• Persistent iron bacteria may require regular shock treatments along with sediment filters.

• A water test by your well company can identify specific contaminants causing water discoloration.

• Reduce well sediment intake by having the well casing extended above ground level.

The Takeaway
While finding brown or discolored water in your home after vacation can seem worrisome, some simple troubleshooting steps should get your water flowing clear once again. Give your pipes a thorough flush and have professionals inspect for any maintenance needs.

With some patience for the water to clear, assessing sediment filters, and addressing any plumbing repairs needed, you can get back to enjoying pristine water after your vacations. Here’s to coming home to clear taps!