Water is essential to life, but not all water is the same. Understanding the different types of water is crucial for selecting the right water treatment system—especially for industrial, commercial, or residential purposes. At Walchin, we specialize in providing advanced reverse osmosis membranes and customized water treatment solutions, and we know how important it is to start with a proper understanding of the water you’re working with.

1. Raw Water

Raw water refers to water that is collected from natural sources such as rivers, lakes, and underground wells. It has not been treated or filtered and may contain:

• Suspended solids

• Microorganisms

• Heavy metals

• Organic materials

💡 Used as the source for most industrial and municipal water treatment systems.

2. Tap Water (Municipal Water)

Tap water is treated water supplied by public utilities. While it’s generally safe for household use, it may still contain:

• Chlorine

• Fluoride

• Trace heavy metals

• Microbial contaminants (in some regions)

✅ Suitable for general daily use, but often requires further treatment for drinking or industrial applications.

3. Distilled Water

Distilled water is produced through a process of boiling and condensation, which removes:

• Minerals

• Salts

• Most contaminants

However, this also strips away beneficial minerals.

📦 Ideal for laboratory use, pharmaceuticals, and sensitive industrial processes.

4. Deionized (DI) Water

Deionized water is treated to remove ions and salts through an ion-exchange process. It is highly pure but can be aggressive to pipes and equipment if not handled correctly.

🔬 Used in electronics manufacturing, automotive, and cosmetics industries.

5. Hard Water

Hard water contains high levels of calcium and magnesium. It is known for causing:

• Scale buildup in pipes and equipment

• Soap inefficiency

• Staining on surfaces

🚿 Common in residential systems and often treated with water softeners or RO systems.

6. Soft Water

Soft water has low concentrations of calcium and magnesium. It may be naturally soft or treated through a softening process.

✨ Better for appliances, easier on plumbing, and ideal for industrial equipment.

7. Purified Water

Purified water is any water that has gone through a filtration or purification process (like reverse osmosis, UV, or carbon filtration). It typically removes:

• Bacteria

• Chemicals

• Metals

• Impurities

🌍 Widely used in drinking water systems and industrial applications.

8. Wastewater

Wastewater includes water that has been used and contains waste products—domestic, industrial, or agricultural. It needs to be treated before reuse or disposal.

♻️ At Walchin, we offer complete wastewater treatment systems to ensure environmental compliance.

9. Greywater vs Blackwater

• Greywater: Lightly used water from sinks, baths, and washing machines (can be reused after minimal treatment).

• Blackwater: Heavily contaminated water from toilets (requires full treatment before discharge).

Why Water Type Matters

Choosing the right treatment process depends on the type and quality of water you're dealing with. Whether you need RO membranes, industrial filtration systems, or custom water purification solutions, knowing the water type helps us provide the most efficient and cost-effective solution for your needs.

Contact Walchin for Expert Water Solutions

We help industries, municipalities, and commercial facilities achieve clean, safe, and compliant water. If you're unsure about the type of water you're dealing with, we offer free consultations and water testing services.

👉 Contact us today to find the right solution for your water treatment needs.