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You are here: Home > Repair Guides > Iron Filter FAQ

Iron Filter Frequently Asked Questions

There are 3 basic types of "Iron Filters".

1 ) BIRM - This media is back washed only. No regenerant used. Requires oxygen to be in the water. Will not work in most areas. Consult local "experts".

2 ) MGS ( Green Sand ) or MTM ( new synthetic version ), regenerated by Potassium Permanganate from a 5 gallon Feeder Tank ( looks like mini salt tank ). The Potassium Permanganate can be added at any time, in any amount. The system will dissolve a few ounces at a time. The system is similiar to the Brine system of a water softener in that it draws out the solution and puts water back in at the end of regeneration cycle for the next time.

3 ) Same as above, but with a draw only Valve ( usually a modified Autotrol ) that is connected to a 30 gallon tank ( like a salt tank ). The tank is normally filled with a purple liquid that is made by adding 3 lbs. of Potassium Permanganate and water. The Valve will draw approxiamately 1'" ( or one gallon ) of solution each night it regenerates.

Questions and Answers:

I have a tank fill with some nasty looking liquid. The tank is as big as my brine tank. It has a small hose that goes to one of my conditioner tanks while the brine tank has a hose that goes to the other conditioner tank.

I am going to guess the "nasty" liquid is water mixed with Potassium Permanganate. The tank must be connected to a "Greensand" tank ( used to help remove Iron and Hydrogen Sulfide Odor ). The valve should pull out about 1" of the "nasty" ( purple ) liquid each night it regenerates. When the tanks is almost empty, 3 lbs. of Potassium Permanganate should be added, then the tank filled with water. Don't let the Potassium Permanganate get on you or your clothes. It turns things Brown. <>

I also have Potassium Manganate and TReg, but don't know where and how much to add.

* I explained the Potassium Permanganate, but I'm not sure what "TReg" is??? May be something that is added to the salt to help clean the resin ( like Iron Out, or ResUp ).
The water softener will take out Iron ( like the Greensand Filter ), but high levels ( over 2 ppm ) require that cleaner be used with the Salt.

Note: The Iron Filter is High maintenance.
The Injectors get clogged and need to be frequently cleaned,
OR
replaced ( either a Red "C" Injector or Green "D" injector is used on Autotrol Valves, which I am assuming you have ).
OR
Fleck models normally use the # 2 PVC gray Injector Set ( Nozzle & Throat )

EMAIL = Subject: fleck 5600 as an iron filter
I recently installed a Fleck 5600 from you set up for a green sand filter. Within 3 months the injector, brine valve and valve ports were plugged from Iron fouling. I cleaned them with a mild acid solution and got them relatively back to new. I am unable to draw adequate vacuum when regenerating. I need to order new parts but am wondering if there are any tips you may have to avoid the frequent cleaning/replacement of the parts. My source well has an Iron content of 2.5 PPM of Iron. and is set up to regenerate 2x per weak. Thank you, Chris

** Very typical because of the iron and organics we have in Florida water.
When I use to service these type units in Okeechobee area, it was common to have to clean or replace injector sets every 3 - 6 months.

The replacement Injector for the Fleck 5600 or 2510 is the # 2 PVC,
Injector Nozzle and Throat Sets Fleck Valves

*** Other things you could do:

1 ) Clean ( dump ) the old Potassium Permanganate out and start "fresh". A lot of oxidized iron builds up in the "feeder" tanks over time.
see:
Tank Feeder for Potassium
and
Pad Felt Pad for standard Potassium Feeder = N1043

2 ) Use "technical" grade Potassium Permanganate, and not "free flow", IF available in your area.
It cost more, but is less likely to clog valve. And we currently do NOT sell any potassium permanganate.

3 ) Do not use the Greensand Filter, if it's just for Iron Removal.
A water softener can remove the 2.5 ppm iron.
But if this unit is also used to remove any hydrogen sulfide odor, you would need more than just a water softener.
see:
System Recommendations
and
Odor - Sulfur (Hydrogen Sulfide) in your water

4 ) I'd be careful using acid, as it can make the injectors brittle and fail ( I know from personally destroying injectors soaked in STRONG acid solution ).

5 ) Also... how old is the Media? Typically "life" in Florida is 5 years ( I've seen 2 years - 10 years, depending on the application ).
It could be the media in the tank is "loaded up" with too much oxidized iron that it has not been able to "flush out" during Backwash cycles.
see:
Greensand PLUS Replacement

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Test Kit for Well Water - HARDNESS and IRON

Test Kit for Well Water - HARDNESS and IRON

Suggested Price: $5.95
Your Price: $5.49

This kit contains the necessary materials to conduct two tests each for iron content ( in ppm ), the hardness ( in grains per gallon ).

Injectors For Autotrol Valves - 28F

Suggested Price: $9.99
Your Price: $7.95

Injectors For Autotrol Valves w/Orings ( 26F & 27F ) included.
White AA = 1032970
Blue BB = 1032971
Red CC = 1032972
Green DD = 1030272

Injector Nozzle and Throat Sets Fleck Valves

Injector Nozzle and Throat Sets Fleck Valves

Suggested Price: $12.00
Your Price: $8.00

Injector Nozzle and Throat for Residential and Small Commercial Fleck Valves.
Commonly used in Fleck 3600,5600,2500,2510, and other 1600 injector brine systems.

Pad - Felt Pad for standard Potassium N1043

Pad - Felt Pad for standard Potassium N1043

Suggested Price: $15.00
Your Price: $9.95

Felt pad used inside Potassium Permanganate feeder tanks made by Clack Corporation.
Manufacturer's part number N1043

Potassium Float Assembly

Suggested Price: $55.00
Your Price: $42.95

Replacement 3/8", 2 - 4 oz Float Assembly For Potassium Permanganate Feeders.
Also used in some systems using chlorine in the 5 gallon Feeder Tank.
Assembly included aircheck, float, and everything you see in the photo.

Manganese Greensand PLUS sold by half cubic foot bags

Manganese Greensand PLUS sold by half cubic foot bags

Suggested Price: $99.00
Your Price: $89.00

Manganese Greensand PLUS ( superior replacement for reguler MGS green sand ) and is capable of removing high amounts iron and manganese, and low amounts of hydrogen sulfide.
The pH level of your water source must be between 6.2 and 8.5 or it will not work

Test Kit Hardness Drops with Iron and pH levels

Test Kit Hardness Drops with Iron and pH levels

Suggested Price: $99.95
Your Price: $89.00

This kit contains the necessary materials to conduct multiple tests of the hardness ( in grains per gallon ) of the water.
AND 50 test of IRON Levels and multiple pH tests.

Tank - Feeder for Potassium or Chlorine

Suggested Price: $105.00
Your Price: $95.00

Complete Feeder Tank with Float Pickup Assembly.
2 oz Potassium Permanganate Feeder, Almond

Birm - Iron removal media

Suggested Price: $129.00
Your Price: $99.00

One Cubic Foot Bag. Birm is used to remove dissolved iron and manganese.

Manganese Greensand One Cubic Foot Bag MGS

Manganese Greensand One Cu. Ft. MGS = (2) 1/2 cu.ft MGS+

Suggested Price: $199.00
Your Price: $178.00

Manganese Greensand ( MGS ) has been REPLACED by GreenSand PLUS.
If you order "Greensand", you will be shipped GreenSand Plus.
Manganese Greensand One Cu. Ft. MGS = (2) 1/2 cu.ft MGS+

Valve - Fleck 5600 12D Filter 120V

Suggested Price: $349.99
Your Price: $249.00

5600 12 Day timer for Filter Applications.
Commonly used on Tanks with Greensand media using Potassium Permanganate Feed systems.


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