Explore Optometry. Home / Education / Admissions / Explore Optometry. A Doctor of Optometry (OD) is an independent, primary health care provider who examines the visual system, the eye and associated structures, as well as diagnoses, treats and manages related diseases and disorders. Optometry involves much more than prescribing and fitting glasses and contact lenses.
In most of the UK, when hard water is softened with water softener, the softened water is likely to comply with the Drinking Water Regulations, assuming that the concentration of sodium does not exceed 200 mg/l, it would be regarded as wholesome and therefore considered safe to drink over the long term.n most of the UK, when hard water is softened with water softener, the softened water is likely to comply with the Drinking Water Regulations, assuming that the concentration of sodium does not exceed 200 mg/l, it would be regarded as wholesome and therefore considered safe to drink over the long term.
The minerals in the water are what make it considered âhard water.â If youâve ever noticed that soap wasnât bubbling or dissolving in your water, this would be indicative hard water that was full of minerals. A water softener can improve the quality of your laundry, cleaning, bathing, and steam-powered appliances.t will only remove minerals that can cause the water to be hard and damaging to pipes, such as magnesium, calcium, and iron. In general, there are no significant or immediate health risks that result from drinking softened water.