Thursday, July 9, 2015

Two Best Options for Removing Manganese from Well Water

Hello Al,

Thank you for contacting us in regard to treating your well water.  From the form on our website you have reported the following information that you would like assistance with:

“What is best option to remove a very high level of manganese from well water. My research suggests chlorination, followed by a green sand filter. Your site seems to suggest carbon. I am looking for a very low maintenance solution Also does the backwash water used to clean the filter carry clogging material into the drain? If so won't that material accumulate and eventually clog the drain?”

In regard to treating high levels of Manganese we would recommend using chlorination, followed by a Contact Tank, and then finally a backwashing Greensand Iron Filter.  As an option a Carbon filter could be included at the end of the system so as to remove any residual chlorine as well as improving the overall tastes and odors.
  The backwashing procedure would not allow for accumulation in the drain plumbing as long as the drain line is sized appropriately, not to mention frequency of backwashing would help as well.  As a general rule backwashing will occur about once per week, perhaps longer or more frequent depending on the number of people and contaminant levels.

How this application will work is the chlorine bleach is injected whenever the well is on, once injected the 40-gallon contact retention tank allows for enough contact time for the chlorine to react with the contaminants and fully oxidize for filtration.  As the media will thrive with the bleach and is used to further enhance performance this translates to long-lasting media without using costly Potassium Permanganate.  The end result being clean, non-staining, odor-free water throughout the home.

These Precision-24 Metering Pump systems are easy to install by anyone familiar with basic plumbing and very easy to maintain yourself.

Greensand is a proven media to remove iron, manganese and sulfur odors.  Iron and manganese are oxidized and precipitated instantly by contact with the Greensand media once the water has been injected with Chlorine.  No need for other costly chemicals or other complicated aeration applications. 

The following will show images, product links for additional information, as well as pricing on the recommended components.  I’ve sized this for a home with up to 3 – 3.5 bathrooms however we do offer smaller and larger sizes as well.

Precision-24 Metering Pump with 15 Gallon Solution Tank:                  

Precision-24 Metering Pump with 15 Gallon Solution TankExtremely versatile pump comes in either 115 or 220 volt so as to be wired to come on whenever your well or pressure system is energized.  Works with well water flow rates from 1 – 50 Gallons per Minute (GPM).

Output rating:  0.1 – 24 Gallons per Day (GPD).  Pressure rating:  Will inject into lines with up to 110 PSI.  Digital speed adjustment allows for quick changes to pump output.

Click here for more information about this product.

Additional features:  Degassing Valve is built in which makes this great for chlorination use.  System includes Chlorination Pump, 10 Gallon Solution Tank, Injection Check Valve, tubing and installation fittings.  25 & 35 Gallon tanks also available.

40 Gallon Contact Tank 
40 Gallon Contact Tank
The CT-40 tank is a durable easy-to-install retention tank designed to provide optimum contact time during chemical treatment. These lightweight seamless totally non-corrosive retention tanks are ideal for new and replacement installation where durability is at a premium. 100% non-metallic polymer materials. Impervious to chemical attack.  Comes with  1-1/4 inch inlet.

2 sizes to choose from, same price  Either 16”Diameter  x 58”Tall or 21” Diameter x 36” Tall

Click here for more information about this product.


Vacuum Breaker, ½” Male Pipe Thread (MPT).   

Vacuum Breaker
Vacuum breaker relief valve Watts 1/2" male 200 PSI maximum.
Required for contact and retention tanks to prevent vacuum in system and avoid imploding vessel.

Click here for additional information about this product.

Greensand Filter 5900E 1.5 cu. Ft, 10 x 54 Tank:                             

Greensand Filter 5900EAll the filter media you need for the system is included.  No need for costly Permanganate Tank as simply uses injected Chlorine residual to oxidize and remove iron, manganese, and sulfur odors. Works great on chlorinated water.  Filter tank is NSF certified one piece seamless polyester construction for long life. Rugged heavy-duty IWT NSF-Certified backwash control valve features fully adjustable backwash and rinse cycles saving water and allowing maximized performance. Time-tested hydraulically balanced piston seal and spacers provide years of trouble-free service.

Dimensions: Filter tank diameter:  10 inches; height including control valve: 61 inches.

Click here for more information about this product.

Spectrum Free Chlorine Test Kit – TK2501                   

Spectrum Free Chlorine Test Kit – TK2501

Quickly and easily test for available chlorine using drops, 50 tests included.  Much more reliable that test strips and help in maintaining a proper residual in your system.

 Click here for more information about this product.


Carbon Backwash 5900e, 1.5 cu. Ft. 115 Volt:                        

Carbon Backwash 5900eAll the filter media you need for the system is included. Excellent for use in removing residual peroxide from water once injected, along with improving overall tastes and odors.  Long lasting & durable this Coconut Shell Carbon typically lasts for 5+ years and is easily replaced.  For the replacement media system, here is additional info on it.

Much longer life and higher flow rates than standard carbon. Unlike carbon cartridges which can trap sediment and dirt causing pressure drop these systems automatically backwash out trapped sediment alleviating pressure drop.  Allows for a maximum flow of 15 GPM without reducing your flow or water pressure.

Dimensions:  10” Diameter x 61” Tall with control valve.  ¾” or 1” pipe connectors and bypass is included.  We also provide full installation and start-up guides directly to you and are available for Tech-support. 

Click here for more information about this product.