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.
You can separate your softened water from your water for the plants, but I've heard that is not cheap. There are other so-called softeners that use calcium, potassium chloride or something else besides salt, but they are more expensive.his means that softened water is delivered to hot and cold faucets as well as the hose bibs you use for hoses outside the house. So, if you have a water softener and you have some sort of irrigation system attached to a hose bib, then you are most likely watering outside plants with softened or saline water.