The selection of the best water filtration system for your needs begins by having your water tested to determine its quality and which contaminants may be present. Next, we’ll help determine which product gives you the type of filtration that best addresses your concerns. Be aware that multiple water quality problems may require a “systems” approach that combines several technologies.
Reverse Osmosis Water Filtration Systems
One of the most effective and cost-efficient home water treatment systems available today uses a process called reverse osmosis (RO). RO systems work by pressuring water up a against a semi-permeable membrane that stops contaminants from passing but allows clean, clear water to get through. Both health-related contaminants – such as lead and asbestos – as well as many aesthetic contaminants that can affect the taste, color, and odor of water are reduced or eliminated by an RO system.
RO is very effective in reducing a range of home water contaminants. This is possible because the reverse osmosis membrane is comprised of microscopic pores which allow the pressurized water molecules, among the smallest molecules known to man, to pass through the membrane. Large molecules, compounds containing contaminants, and even dissolved ions are left behind.
Activated Carbon Water Filtration Systems
An activated carbon filter can significantly improve the quality of your household water for just pennies per gallon. Activated carbon filters are among the most common home water treatment systems for problem water because of their effectiveness, ease of use, and cost-efficiency. They are most often used to eliminate undesirable odors and tastes, organic compounds, and residual chlorine. They can also remove some potentially hazardous contaminants such as radon gas, herbicides, pesticides, and trihalomethanes. Additionally, activated carbon in specially designed precoat and solid block filters is effective in reducing some heavy metals, such as lead, from drinking water as well as treating the biological contaminants Cryptosporidium and Giardia.
Activated carbon filters provide clean, fresh-tasting water that will likely enhance the aroma and flavor of coffee, tea, juices, soups, and other drinks with which it is mixed.
Below is a diagram of an activated carbon filter.
Types of activated carbon filtrations systems:
- Pour-Through – Similar in design to a drip coffee marker, a quantity of untreated water is poured through the carbon and the treated water is collected in a receptacle. The most common use is in the popular filter pitchers.
- Faucet-Mounted – These are small units which attach to the end of your faucet, providing unlimited water on demand. Can screen out more contaminants than pour-through filters.
- Countertop – Small enough to fit on the countertop, these units direct water from the tap through the filter and then back to the tap. Can screen out more contaminants than faucet-mounts, and their filters last longer.
- Undercounter – Contain more activated carbon than either the pour-through, faucet-mounted, or countertop models. Generally installed in-line under the sink.
- Whole-House – A high-volume unit installed at the point of entry in the house. Whole-house units should be considered if you are treating for contaminants which can be absorbed during bathing or showering, or from inhalation.”
Iron and Sulfur Water Filters
Iron, manganese and sulfur are oxidized and removed from your water, protecting your plumbing and eliminating ugly staining and unpleasant tastes and odors.
How the System Works
The system consists of three major components: a backwashable filter containing oxygen charged manganese greensand, a chemical feeder which delivers an accurately measured volume of potassium permanganate solution for each regeneration and either a calendar clock or meter initiated control valve which governs the operation of the system.
As water passes through the filter bed, it comes in contact with the oxygen charged media. This causes iron, manganese and sulfur to oxidize. The undesirable compounds are then trapped in the filter bed. Eventually the oxygen in the filter becomes depleted and regeneration is necessary.
Regeneration takes place during the night while you sleep. First, backwashing cleans the filter bed, then concentrated potassium permanganate solution is passed through it, recharging the bed with oxygen. Two rapid rinses remove any remaining potassium and a volume of water is returned to the feeder to dissolve enough potassium permanganate for the next regeneration. All functions are performed automatically.
Neutralizing filters use a special media which raises the pH of acidic water and neutralizes its corrosive characteristics. In addition to protecting pipes, plumbing fixtures and appliances, this filter also facilitates the removal of iron and manganese by raising the pH. This enables an iron filter to be used. Periodic backwashing cleans the bed.
Turbidity (Multi-Media) Filters
Our turbidity filters use multiple medias to trap suspended particulate matter, such as clay and silt, which gives water a cloudy appearance. The result is clean, clear water. The multi-media filter bed facilitates more thorough backwashing and prevents channeling. Periodic backwashing with our calendar clock control valves cleans the bed.
Valve Chemical Free Iron Filters
Once installed, the chemical free iron filter requires little or no attention. It automatically removes soluble iron, sometimes called ferrous iron or “clear water”, precipitated iron, sometimes called ferric iron or “red water” and bacterial iron. It is safe and very economical because it requires none of the expensive or messy chemicals conventional iron filters use.
Neutralizes acidic water
The chemical free iron removal filter’s patented process raises the pH of the water, improving the efficiency of iron removal. This has the added benefit of neutralizing acidic water.
Residential Water Filters
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