Yes, softened water is generally safe to drink. The water softening process involves replacing calcium and magnesium (the "hard" minerals) with sodium. While this adds some sodium to the water, the amounts are usually low and fall within safe consumption limits in most areas, especially where water hardness is moderate. However, people on low-sodium diets, those preparing baby formula, or individuals with certain health issues like hypertension may want to avoid drinking softened water or consult their doctor. In such cases, having a separate tap for untreated hard water for drinking is often recommended.
Key Points on Drinking Softened Water
- Softened water contains sodium but in amounts typically below recommended safety limits (under 200 mg/l sodium), making it safe for most people to drink.
- If the original water hardness is very high (above 400 ppm), softened water might have higher sodium content, making it less suitable for drinking without further purification.
- Softened water tastes smoother and may be preferable for household use in cleaning and bathing.
- Certain populations—such as those on low-sodium diets, infants needing formula, and people with cardiovascular conditions—should be cautious about drinking softened water and may need to use untreated water for drinking.
- Water softeners work by ion exchange, replacing calcium and magnesium with sodium ions.
- A separate drinking water tap with filtered or untreated water can be installed if drinking softened water is a concern.
In summary, drinking softened water is safe for the vast majority of people, but individual health considerations should be taken into account. When in doubt, consulting a healthcare professional is advisable.
