The primary hard water minerals are magnesium and calcium (the hardness minerals), while iron and manganese (“the stainers”) can also be found in Hanson water, mostly in private wells. These contaminants can be removed with a water softener and/or a properly specified sediment filter depending on whether the contaminant’s form is in solution or particulate. A water test and analysis will determine the best course of action.
Hard water interferes with many cleaning tasks, from doing the laundry to washing dishes to taking a shower. Washing your hair in hard water may leave it feeling sticky and dull. Dishes and glasses get spotted and a film may build up on shower doors, bathtubs, sinks and faucets.
Clothes can look dingy and feel rough and scratchy. Hard water can also cause a residue to build-up in pipes that can lower water pressure. Calcium and magnesium may have major affects on your home’s plumbing and your ability to clean, even though the EPA has no published limits on these. The maximum allowable level (per the Environmental Protection Agency) for iron as a secondary contaminant is .3 parts per million and for manganese is .05 parts per million. Small amounts of these minerals can have very noticeable, even damaging affects on your home’s water quality.
AFFECTS OF IRON, MANGANESE & HARD WATER
Scale from hard water can build-up inside water heaters insulating the temperature sensor inside the tank creating extra work to bring the temperature up to the set level. This reduces the life of your hot water heater and will likely require early replacement. Some other affects of these contaminants include corrosion and scaling inside pipes and major staining throughout the home’s showers, bathtubs, and sinks. For those using their well water for lawn irrigation, iron and manganese can cause major staining of walkways, siding and anyplace the water touches. See the link at lawn irrigation.
WHAT A WATER SOFTENER REMOVES
A water softener effectively removes dissolved forms of iron & manganese and hardness minerals from the water. To remove particulate iron or manganese, water filtration utilizing a cartridge filter with proper micron rating will be effective. Depending on the situation, this could require a series of filters with different size micron ratings to handle heavier levels of different sized particles in the water. Selecting an appropriate micron rating and style of filter can be determined by a water treatment professional based on water test results and other symptoms. For more information on Iron and Manganese in water, see our published articles in Water Technology Magazine at the following link: https://h2ocare.com/pub/.
For more information on hard water, see link at water.usgs.gov/edu/hardness.