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.
If you have soil that has been watered too much with softened water, you will need to work to correct the salt levels in the soil. There are no chemical ways to reduce the amount of salt in your soil, but you can do this manually by frequently watering the affected soil. This is called leaching.his dilutes the effects of the salt in your softened water and makes it less harmful to your plants. But be aware that the salt in softened water will still build up in the soil. It will be very important that you regularly test the soil for salt levels.