An apartment owner called for a plumber to replace one of the leaking pipe lines. The plumber arrived and found that the galvanized iron pipes are deteriorated and corroded. He advised the apartment owner to replace the galvanized iron pipes with the PVC pipes. Why did the plumber give the above suggestion?

Explanation

**Step-by-Step Solution:**

1. **Identify the Problem**: The apartment owner called a plumber because one of the pipelines was leaking. Upon inspection, the plumber found that the galvanized iron pipes were deteriorated and corroded.

2. **Understanding Galvanized Iron Pipes**: Galvanized iron pipes are coated with zinc to prevent rusting. However, over time, especially when in continuous contact with water, these pipes can corrode and deteriorate, leading to leaks.

3. **Reasons for Corrosion**: The continuous exposure to water can cause the zinc coating to wear off, exposing the iron underneath to moisture, which leads to rusting and ultimately, corrosion.

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