Soft water corrodes pipes because it lacks minerals and actively dissolves them from the pipes.
Soft water's corrosive nature stems from its mineral deficiency. As soft water travels through piping systems, it seeks to balance its composition by dissolving minerals from the pipes themselves, primarily copper. This process, over time, leads to corrosion and the development of pinhole leaks in the pipe walls.
The Science Behind Soft Water Corrosion
| Feature | Description |
|---|---|
| Mineral Deficiency | Soft water lacks minerals like calcium and magnesium, which are typically found in hard water. |
| Dissolving Action | This deficiency causes soft water to actively dissolve minerals (like copper) from the pipes it flows through. |
| Corrosion | The dissolving action weakens the pipe walls, leading to corrosion and eventually, pinhole leaks. |
Practical Implications
- Pinhole Leaks: The most common sign of soft water corrosion is the appearance of small, pinhole leaks in copper pipes.
- Reduced Pipe Lifespan: Continuous corrosion significantly reduces the lifespan of the plumbing system.
Solutions
To mitigate the corrosive effects of soft water, consider the following:
- Corrosion Inhibitors: Introduce corrosion inhibitors into the water system to reduce its aggressiveness.
- pH Neutralization: Adjust the water's pH level to reduce its acidity and corrosive potential.
- Alternative Piping Materials: Consider using alternative piping materials like PEX or CPVC, which are less susceptible to corrosion.
