1. Common eucalyptus species include pinkwood, hard water fern and soft tree fern. 2. In hard water areas, water softening plant may have been considered necessary. 3. _That stubborn soap scum in the sink could be hard water deposits. 4. Q : How-to books advise using a water softener on hard water . 5. Some studies correlate domestic hard water usage with increased eczema in children. 6. Captive-bred cardinals tend to adapt to hard water better than wild-caught cardinals. 7. Dishwashers are more effective in soft water than in hard water . 8. Hard water contains calcium ( and often magnesium ) bicarbonate or similar ions.9. Purified water should be used for watering purposes, although'hard water 'is tolerated. 10. Synthetic detergents are less susceptible to the effects of hard water .
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