What Causes Corrosion in a Home’s Plumbing?

A corroded home water value with copper pipes, brass fittings, and a red knob with wooden planks in the background.

Plumbing corrosion is a widespread problem that often results in expensive repairs and significant water damage. As pipes degrade, dangerous materials can pollute the water supply, leading to a host of health problems.

By understanding the causes of corrosion, homeowners can take proactive steps to protect their plumbing systems. We’ll break down five of the most common causes of pipe corrosion you should be aware of.

Water Acidity

Water acidity, also known as pH level, is responsible for much of the corrosion in plumbing. Ideally, the water in your home’s plumbing system should have a neutral acid level—around 7—on the pH scale. When water has a low pH, it becomes acidic and can eat away at metal pipes over time.

Hard Water

Hard water contains high levels of minerals such as calcium and magnesium. These minerals can accumulate within your plumbing system, causing scale buildup. The buildup not only reduces water flow but also leads to corrosion, which can weaken the material of the pipes and potentially cause leaks or bursts.

Drain Cleaners

Using chemical drain cleaners to clear blockages can cause significant damage to your plumbing system. These cleaners contain harsh chemicals that can corrode the interior surfaces of your pipes, particularly if used frequently. Generally, drain cleaners can exacerbate underlying problems in your pipes, which require costly repairs down the line.

High-Velocity Water

Water velocity refers to the speed at which your water travels through your plumbing system. Believe it or not, water moving at a high velocity is a common cause of pipe corrosion. This is particularly notable in homes with a closed-loop piping system where water pressure is high.

Water Temperature

High water temperatures can accelerate chemical reactions that lead to corrosion. Whenever your water heater is set to temperatures above 180 degrees Fahrenheit, it makes your pipes more vulnerable to oxidation and rusting. It effectively “burns” your plumbing system and weakens your pipes over time.

Corrosion in a home’s plumbing system can stem from various sources. By understanding these causes and taking preventive measures, homeowners can protect their plumbing systems and extend their lifespan.

Whenever you need to repair pipe corrosion by replacing plumbing parts, be sure to order quality hardware from Craft Supply Corp. We carry a wide selection of brass pipe fittings that offer superior corrosion resistance that will last for several decades. Contact us today to learn how we can satisfy your bulk plumbing hardware needs.