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11. Iron & Manganese Removal Using Manganese Dioxide Filter Media

ultraviolet sterilizers for well water

manganese dioxide filter mediaWelcome to Episode 11 of Clean Water Made Easy Podcast. 

In today’s episode, our host Gerry Bulfin, a water treatment contractor and WQA Certified Master Water Specialist discusses iron filter media, particularly manganese dioxide filter media for removing iron and manganese from well water.

Manganese dioxide is a natural filter media that effectively removes iron, manganese and sulfur odor from well water.   There are different types of manganese dioxide filter media and Gerry discusses the advantages of the various kinds as well as discusses what to look for when using this filter media.

Filter media is what is inside a filter tank and removes iron and manganese.  


Manganese Dioxide Filter Media for Well Water

Items we Cover in this Episode:

  1. manganese dioxide filter media water
    Water Filtered with Manganese Dioxide (on left) and Unfiltered Well Water (on right)

    What is manganese dioxide filter media and how is it used?

  2. What are the benefits and advantages of using manganese dioxide for removing iron, manganese, and odors from well water?
  3. What is the difference between greensand, birm and other coated media and solid manganese dioxide media such as Pro-OX, Filox, Pyrolox, Birm etc?
  4. Under what conditions does manganese dioxide media work best?
  5. Importance of water chemistry, and flow rate, such as how many gallons or liters your pump puts out per minute  




Transcript of Episode 11

Iron & Manganese Removal Using Manganese Dioxide Filter Media

You’re listening to the Clean Water Made Easy Podcast Episode 11

Hello, hey thanks so much for tuning in to the Clean Water Made Easy podcast. Gerry Bulfin here again. I’m a Water Treatment Contractor and WQA-Certified Master Water Specialist. I hope you’re having a fine day wherever you are listening.

In this series, I’ve been giving useful easy-to-follow tips and information all about well water, well water treatment systems, and how to improve the quality of your well water. Appreciate the emails and feedback I’ve been getting and if you’re using iTunes and you’d be so kind, it’d be great to if you went over iTunes and rate it and maybe left a short review of the podcast. That helps the podcast a lot, I appreciate it.

In today’s episode we’re going to talk all about iron and manganese media. Specifically, manganese dioxide filter media. Media is the word that we use, it looks like sand, it’s a granular type of filter media and it goes inside a filter tank and in this context what we are talking about are backwashing iron filters. So the water flows in down through the filter media, iron and manganese is removed and then after a while, they’re usually automatic, it turns on, backwashes and cleans this media.

So there’s many different kinds of filter media, and that’s what we are going to talk about. Specifically, manganese dioxide media which is the most, probably, common nowadays and popular type of filter media used for iron and manganese removal.

If you want to see pictures of what the media looks like and iron filter tanks, please go to our website, and you can also email me directly at and I spell my name with a G, G E R R Y and then B U L F I N.

Topics in this Episode

Anyway, today the items we’re going to cover are: what is manganese dioxide, how is it used, what are the benefits and the advantage of using manganese dioxide for removing iron, manganese, odors from well water, and what’s the difference between the coded type of such as greensand or Birm where there’s a thin layer of manganese dioxide coating the different type of mineral element underneath it. And the solid manganese dioxide media where it’s a solid granular like a solid chunk of the manganese dioxide. Those, you see different brand names for that, such as Pro-OX that’s one we sell or Filox, Pyrolox, those are all brands of the manganese dioxide media.

We’re going to talk about under what conditions manganese media work the best and the importance of water chemistry flowrate; and, I did talk about this before in episode 2, we talked about how to test your flowrate, in episode 5 we covered some of this with basic iron treatment but here I’m going to talk specifically more about manganese dioxide. Get a lot of questions about it so it should be interesting.

If you’re listening to this, you already know this but iron is serious problem. Many folks have, all over the world have problems in their well. It’s now a problem in the US and Canada but we see a lot of iron and manganese problems in Mexico, South America.  We’ve even seen some folks in Europe and know that there’s different parts of Europe to have problem with, Middle East, Asia of course.

So generally what you should be seeing with iron is .3 parts per million or less or in manganese .05 parts per million or less. It’s very little amount over that level, it causes stain, water can have a red, brown, or yellow color, stain laundry fixtures.

Manganese and other metal that leaves stains instead of a rust stains like iron leaves a brown stain and that again is a, the standard for that is anything over .05 so if you have an effective iron and manganese filter or reduce the level below where it’s not going to causes stain.  They’re not really health threats these iron and manganese although it tastes pretty terrible if its’ high enough but some people are affected.

Manganese can affect their stomach or some people have problems with too much iron in their diet so that’s another problem but anyway, generally it’s more of an aesthetic issue.

So we use a few different methods to remove iron and manganese from well water. Generally, iron and manganese are usually found in ground water dissolved. Now that is, the water looks clear but if you taste it, taste terrible, taste like rust or you know, has a bad taste from the manganese but the water looks clear. But you know if you’re, the well water has been exposed to lots of air or there’s dissolved oxygen present and or sometimes iron bacteria and then you get rusty water coming right out of the ground but usually it’s clear water.

So the reason I brought that up is because that’s how manganese dioxide works. What happens is, the water comes out of the ground, it’s clear but when it hits the iron and the manganese dioxide media, the iron and manganese oxidize. That is, they turn from a dissolved form to a solid form. In other words, they’re ferrous iron and they turn into ferric iron and that then is trapped in the filter media and then once or twice a week or more often, it turns on in the middle of the night, typically this is like for homes for instance, and backwashes all that rusty water out, the rust particle out and then the filter media is good to go for another run. This can last years, hopefully they do last many years.

So you’ve got this situation where you mean to oxidize the iron and manganese and so the, traditionally, I still use quite a bit, is that you can use just plain sand and anthracite. So for instance like, it’s special type of filter sand but basically it’s just sand and then the water is injected with chlorine or ozone or it’s aerated in a very strong way. Then the, but it’s typically chlorine, and then the water flows into these sand filters and then if all the iron is a hundred percent oxidized just right, then the sand filter will eventually start to remove the iron. Over time, that’s one of the filter media that’s the methods but the reason is this a hassle use traditionally is that, required very careful operation.

Didn’t know this work well you’ve had an operator present, you’d had adjust the chlorine levels based on different water conditions. Sometimes you’d had used other chemicals to help with the process. So generally it’s not that effective. So for homes, small communities it’s not used that much, but it’s cheap. So that’s one reason it was used a lot. But you can’t just get a standalone sand filter just like you can’t use a standalone cartridge filter and expect it to remove all the iron and rust that’s in the well water. Because the iron is largely dissolved in the water so you need some way to oxidize it.

Types of Filter Media

So there are various types of filter media. The main types of manganese dioxide media that we’re going to talk about here are ones that are coated and ones that are a high purity like a solid chunk of the manganese dioxide. So they both work well, they have different advantage and disadvantages. But the first step, I’m mainly going to talk about manganese dioxide, but the first step, we’ll talk a little bit about oxidation because it relates to a type of manganese dioxide you might use.

Mostly, a very common way for homes is a to use either aeration or chlorination. So chlorine has advantage that it kills iron bacteria and it works really well with manganese dioxide. It can, well you can kind of look at it this way, it sorts of primes the water or increases the oxidation capacity of the water. It doesn’t need, you don’t need to inject enough air or chlorine or ozone to get the iron to completely turn to rust.

The idea is that you just want to increase the potential of the water for oxidation so when it hits the manganese dioxide media, a catalytic reaction takes place right in the media and boom, you get all these great formation of iron floc happening right in the media. Usually if it’s a tank, say it’s a standard tank for home, might be 3 or 4 feet tall or maybe 5 feet tall, you’ll get the most of these oxidation threshold take place right on the top layer of the media. But the idea is that, you’re using some kind of oxidizer ahead of the manganese dioxide. That’s the best way to go.

I’ll talk about it but there are some conditions where you don’t need any oxidation if your water chemistry is right, you can just use the manganese dioxide system by itself without any aeration. But generally that’s a rare case or that’s a smaller percentage of the cases that we least see in North America.

Perhaps if you get into the borehole wells in Africa or other as where there’s shallow wells and then there’s a lot of oxidation going on anyway, then you might not need, you could just use a standalone filter system. But usually you’re combining the manganese dioxide with some kind of oxidation. So chlorine works good or air or ozone or hydrogen peroxide.

I’m going to talk about hydrogen peroxide in its own dedicated episode coming up but while peroxide can be used as an oxidizer before the manganese dioxide filters. It’s not as effective as chlorine and especially if you have manganese. The peroxide is not that effective for manganese. It’s counter-intuitive because we have peroxide and sometimes you put it on your skin to clean a cut or whatever so you think , “Oh it’s going to kill bacteria”, but we have it in the water, it’s considered as very weak biocides. So it’s not an effective disinfectant at the levels we’re using. It’s more of an oxidizer.

So anyway it works great if you have iron, if you’re looking for iron removal with a manganese dioxide but if you have manganese in the water then you’re better off using chlorine or ozone.

Aeration can work too but you have to have the pH up higher, I’m going to talk about pH in a minute here too. But the pH is critical, if the pH is needs to be closer to like between 7.5 to 8 is good. If you’re using some types of very weak coated media, you have to get the pH over 8.2 for manganese to work and those media such as Birm are not as effective for manganese removal in our experience.

Okay so we talked about oxidation but now, what type of filter media to use. We talked about this sand and anthracite media, not the best option generally for iron treatment specially for homes on standard wells, better to use manganese dioxide because the manganese dioxide is a catalyst that if when it there’s a tiny bit of dissolved oxygen in the water, when the iron and manganese in the water hit the, come in contact with the manganese dioxide, it get that catalytic reaction and the iron and manganese is removed, filtered out of the water. Same with hydrogen sulfide. If there’s enough oxidation in the water, then when the hydrogen sulfide and water flow through the manganese dioxide media it basically converts the hydrogen sulfide and into an insoluble particle that then gets trapped in the media and the odor is gone.

Several different types of manganese dioxide coated filter media are used very common, Birm is very popular one, it’s Clack Corporation trademark. It’s been used for many years. It’s cheaper, it’s light but has a very, very thin coating of this manganese dioxide on it and it’s a bit unstable, you can’t use chlorine with it. It strips the coating. If there’s hydrogen sulfide in the water, the rotten egg odor, it doesn’t work well for that.

We’re in California, for some reason we can’t sell it here because of the proposition where there’s a warning against, the backwash has a little bit of chromium in it for what we heard so it’s considered, it’s banned basically. But anyway all the people have used for many years actually it works good. If you have just a small amount of iron and you have the right conditions for it and the Clack will tell you the operation conditions if you follow the conditions.

Actually it works, it does work on an iron. So but it’s got a very thin coating. Probably 1% the coatings you can talk about them in terms of what the percentage is of the manganese dioxide it is. So Birm and maybe couple others, they’re very low like 1%. Greensand and some of the different greensand type coated media are, have a little bit higher, somewhere 5. Some have high as 10%, they even go, there’s one that can even go up to 18% which is very high for the coated media.

So that just means that they’ve been able to put a coating of this manganese dioxide material over some other kind of cheaper and lighter substrate. Usually silica, one come and uses dolomite which also helps raise the pH but it’s sacrificial so it doesn’t last as long.

And then there’s a couple different types of substrate or inner core that they use that they coat the, they coat this with the manganese dioxide. So usually, historically, greensand filters or clean and regenerated with potassium permanganate this purple chemical and you can also inject potassium permanganate into the pipe before the greensand filter and you can do it this as well with the manganese dioxide filters. But this intermittent regeneration so-called, regenerates the media intermittently, is perhaps less effective than continuous regeneration where you’re injecting chlorine or ozone into the water ahead of the greensand filter. And now what you get, the media doesn’t ever get exhausted. This media can only run so long before it needs to be regenerated with a, usually with potassium permanganate or chorine. You can also inject that into the water ahead of it. But it needs something, this type of coated systems really work well on their own without any type of oxidation. They need, usually needs some kind of oxidation or they need a water that already has a lot of dissolved oxygen in it to work.

So the other type of media that we already talked about, alluded to, is the solid manganese dioxide. All that means solid type just means is that, this is an ore that they have mined, so it’s a natural material that they’ve mined and they’ve carefully grated it into a fine particle and so it’s not coated, it’s not treated really at all.

All it is, is just they fine this pure manganese dioxide ore and then they grind it and grate it and wash it so you get a very high quality filter media. So the advantage is it’s natural, there’s no chemicals in it and the bind that we buy ours  from, Pro-Ox, they’re one of the very large, I don’t know if they’re large, but they’re one of the largest manganese producers in the world and what they do is that they, like the vast majority, the manganese they fine is not suitable for water treatment and that’s true with other mines as well.

What happens is, is that mostly manganese is used for various industrial processes, steel, it’s used a lot in batteries. So the vast majority, I don’t know what the percentage is but I’ve heard it’s like 97 to 98% of all the manganese is not used in water treatment. But, what happens is, is that when they’re working in the mines and they find a relatively high grade, a high purity in cases that we use it has to be you know greater than 80% and the average is like 85% pure manganese dioxide then that’s what they, they set that aside.

That’s what they use for water treatment and it’s low in like other contaminants so ours is in the certified, actually all the filter media, I’m pretty sure all the filter media that’s sold, less some imported off grand or something is all NSF- certified. NSF is an independent organization and they test it and make sure that there’s nothing contaminating the water. There’s no sand or blood in the water, or some other weird stuff.  It’s in a good form that doesn’t add anything into the water.

So this solid manganese dioxide media is interesting and there is different strengths of it even in the solid manganese dioxide, there’s different qualities. I know like for instance in some countries, you find it in like India and in China that the, it’s solid manganese dioxide but it’s very low percentage. It’s maybe 20%, 25% it doesn’t work that well.

And so this stuff works really well and like I said that there’s different brands you can look for, Pro-OX what we have but there’s Filox, there’s Pyrolox, there’s different ones and what it is, is that the media is porous. So the higher the porosity of the solid manganese dioxide media, the better it is. And then also, there’s other structures that are inside it like a pyrolusite and  NSU tite structures that create this highly oxidative environment so that it basically works better. For what we’ve been able to gather over dealing with thousands these systems over the years is that you can get higher flow through it with a smaller filter.

The disadvantage is it’s heavy. So a lot of people are turning against it for instance if they, because in instance it’s heavier than the coated type, it requires a little bit higher backwash rate. So in other words, how much flow, how many gallons per minute your well pump, like for instance in home system can produce, it needs a higher flowrate but it’s not huge it’s like 2 or 3 times but it’s somewhere like 30% higher flowrate than say a greensand or other type of coated media.

But the advantage is that we feel is that, and it’s not to be a sales thing for our media. I’m trying to give you all the different, you know, advantage and disadvantages but is that it lasts longer and generally it just seems to work better. It doesn’t fail quick. Some of the coated media it can fail within a few years. You get the media, it gets worn off, I mean the coating gets worn off. It’s a fact that if there’s a low pH for a certain time it runs the media, this stuff, it just doesn’t get ruined. It can, if it’s not backwashed properly or set up properly, it can start to clump together but you can take it out of the tank or cut the tank in two and smash it up yourself and reuse I mean it’s pretty much, we don’t say it’s a permanent media because some people do replace it after say 10 years or so. But generally it’s pretty permanent I mean it does last a long time because it’s not a sacrificial. It’s very light sacrificial media. In other words, there’s a very small attrition. It can backwash many, many more times than the standard coated media which is a manufactured media.

So that’s the big difference in it. However, if you, since it is heavier, if you don’t have the flowrate in order to backwash it, then you have to go to a different, like a lighter media or you have to put in a holding tank or figure out some other way to increase your flowrate.

So as I was talking about the performance of the media is directly related to the purity of the manganese dioxide and the porosity of the granules and the level of highly active sites on the structure. So you want to, like I’ve said you want to have one that’s higher purity, more porous and strict particle sizing is important.

Most, all the media now they have pretty good high uniform coefficient which means that all the particles are the same size but that’s what you’d want to look at is you want to make sure the media in the filter tank, it works better if the media is very uniform. And so that’s a sign of a high quality media, it’s all very uniform in size. And the solid manganese dioxide filters they can use intermittent or continuous regeneration as well, generally continuous regeneration works best where injecting chlorine ahead of it.

Now there are situations where you can use the manganese dioxide media on and so without any prior ration. And one way to figure that out is if you can measure the ORP. ORP, you can get a little ORP meter, sometimes you can go to a pool, place and have measure the ORP. But basically, it measures millivolts and so it’s a little meter, there’s different kinds of laboratory type and other ones but essentially if you can raise the ORP over 200 millivolts about, then the water has enough oxidizing capability on its own where it can, it doesn’t necessarily need a chemical regenerate or aeration ahead of it.

Generally, though, for homes we do recommend, the thing is we recommend aeration because over time your water might change. You don’t know what you’re dealing with it at this point, that maybe over time the iron can get worse, the pH could change so it’s important that aeration helps with the iron filter media works because it adds in dissolved oxygen in the water. And, or you can use chlorine injection. So this type of situation is where, if you had a hundred percent of the iron with pure rust. In other words, a hundred percent oxidized iron, theoretically, you could use a cartridge filter or as I talked about it before, a sand and anthracite. But generally, the Pro-OX, the manganese dioxide media, the type of medias will work better than just the cartridge because the iron will pass right through it.

Okay so what are some things to look for, well, one thing you want to look for is, make sure you check the pH of the water. You know, 7 is neutral. pH has a scale of 1 to 14 so 7 is neutral. Below 7 is considered acidic. Above 7, alkaline. It depends on whether there’s manganese in the water but generally you want to see a pH for iron removal between 7 and 8. You can have a lower pH, it won’t hurt the media but it depends on how much iron is in the water, it won’t work as well if the pH is much less than 7.

So there’s ways you can deal with that of course, if you have acidic water you want to correct the acidic water anyway because you don’t want acidic water running into the home where it can corrode fixtures and fittings even if you have PEX pipe, you can still get corrosion problems on your water heater, etc. So there’s different ways you can use another tank of crushed marble or other types of pH-raising filter media in a tank before the iron filter to raise the pH and neutralize the pH. If you have a very low pH, say 5 and that range then you might be better off injecting soda ash into the water which is also there’s food grade or potable water grade, sodium carbonate which you can use. And that all keep maintain a, you know, your neutral pH and then the manganese dioxide will work great. Most people don’t have acidic water but there is a lot of it out there, I don’t know what the percentage is again, but we have quite a few people with acidic water and they usually either use a tank before it or they get a blend where you have the 2/3 of the filter tank is manganese dioxide and then 1/3 of it is calcite or crushed marble or some or the less commonly used dolomite. But basically you’ve got a mineral that will add a tiny bit of calcium into the water and alkalinity and then neutralize the pH so your iron media will work.


Fortunately, that the blends work good because the manganese dioxide media is much heavier so it sits on the bottom and then the, your calcite is on top and then if you have a one tank system then you’ve got to add more calcite to it pretty regularly. So you might have to add it a couple times a year depending on how much water you’re using with the pH is.

Okay after pH, the next thing you want to check is manganese. A lot of folks think “oh I’ve got rust stains”, “I got iron”, they don’t realize they also have manganese too so if you get a system and you set it up where it only takes out the iron then you’ll quickly realize you have all the rust is gone but now you’ve got black or tea-colored stains in the dishwasher or on sinks or fixtures or in laundry.

So manganese is anything, like I’ve said before, anything above 0.05 milligrams per liter, same thing as parts per million, anything above that causes stains so it’s pretty low level and manganese requires more oxidizing power or it’s a little slower reaction time than iron and its higher pH is required. So in our experience it’s better if you do have manganese, it’s better if you chlorinate it first or ozonate it. Aeration will work too as long as the pH is between, is higher like 8 is good, 7.5 to 8. And by chlorination or aeration or ozonation, I mean an automatic or continuous system that injects a tiny bit of chlorine before the filter system.

The next thing you want to check to see is if you have iron bacteria, iron and sulfur related bacteria, various species, various types of bacteria that live in water, very common in the environment. And they metabolize the iron and manganese for their cell walls and in the end you end up with a stringy mass, you can usually see it in the flush tank of your toilet where you’ll see like  growing out from the sides or maybe the water will be bubbly with clumps of slimy gelatinous material floating in your flash tank you know behind the toilet. That’s a really good way to check because most people never clean their flush tank of course and so it gets a, the iron bacteria living in there and just go to town and create this slime. And so, if you have that, then your options are still the manganese dioxide works great. It’ll take out the iron but it’s not going to take out iron bacteria or disinfect the water. So disinfection is a good idea if you can do it.

So it’s better to have a chlorinator, it’s the cheapest way or an ozone system ahead of the iron filter. And then you’ve got disinfected water and the iron bacteria removed along with the iron. However, there’s another way to do it and that’s sort of a semi manual way and that is, you’ve got your, say you’re using an air injection iron filter, you’ve got your manganese dioxide filter, it’s working great, it’s taken out all the iron and then once or twice a year or maybe more if you have a really bad problem, you sanitize the pipes and the well if you can with chlorine bleach. And so that kills the slime that’s growing in the pipes. In instance, there’s no more iron in the water, that works pretty good. Because the thing is, that iron bacteria are not a nuisance but they can create odor.

So you’ve got, especially in pipes that aren’t used much. Like so we hear a lot of folks saying “yeah I don’t know what the story is like, I’ve had odor in my problem odor in the house except for the upstairs bedroom that doesn’t get used”, you know, “I have one, I have a guestroom” or “I have one part of the house that doesn’t get used but the odor is terrible in that water what’s the story?” well it’s because you have iron bacteria living in that pipe happily undisturbed and so by running chlorinated water through the pipes, it can kill that. And I know I’ve referred to chlorine much of times and this is covered in the other podcast episode on chlorination but even though we’re chlorinating, most of our customers do not have a chlorine residual in their water in the house. So there’s either a usually carbon filter, that removes it or if they’re using a contact tank which gets time for the chlorine to degrade, after goes through the manganese dioxide, it’s either gone or it’s really low where you can’t smell or taste it. Because you don’t want a high chlorine residual, of one thing you don’t want a, you know a really shower in a high chlorine residual if you can avoid it I mean, a lot of us grow up in city water where it all has chlorine residual. But you know, the idea is that, if you have a septic tank, you don’t want to run a bunch of chlorinated water down the septic tank. So better to remove it and it’s fortunately it’s cheap and easy to do so most folks do that. They chlorinate the water, where through the contact tank and then the iron filter and then the, but the chlorine is removed when it goes in the house.

Okay the next one after iron bacteria is the rotten egg odor, the terrible sulfur smell that’s so common. That manganese dioxide, a lot of times you’ll see specs removed hydrogen sulfide. The thing is it doesn’t really remove hydrogen sulfide on its own for very long, unless you use an oxidizer. You almost have to use an oxidizer if you’re using any kind of manganese dioxide media so chlorination is good, combination of chlorination and aeration is good, but sometimes plain aeration is good as well and, but ozone is really good except for the price. But the chlorination and aeration are relatively low cost way to go.

I wanted to mentions tannins too, water that contains high levels of tannin has a tea-colored look to it, that if you’re drinking tea, you’re looking at the tannin color of the tea. But that is, it’s not extremely common but it’s common in some areas of the country and if you did use a strong oxidizer such as chlorine in a contact tank and then you have another filter tank with activated carbon, then low levels of tannin are not a problem.

It isn’t a problem for the manganese dioxide media but you might, if you have enough tannin in the water even after you removed the iron and manganese you could still have a weird colored water like if you filled the bathtub it looks like a slight tea-colored look to it. So there’s different kinds of tannin filter systems out there as well but that’s one thing if you suspect it, that’s one thing you want to test, you know how much tannins are in the water.

And last but not least is the flowrate. I talked about that a bit but the flowrate is just how many gallons in one minute your well pump can pump. So most homes in the US that have, they’re getting their water pressure off their submersible well pump, you’re looking in somewhere between 5 and 20 gallons a minute. 8, 10, 12 gallons a minute is pretty common. And then some folks with bigger homes or they have some agriculture used, they have higher flowrates. But you need to know the flowrate because the manganese dioxide or even the coated type, they have less level, they need a certain minimal flowrate to clean that media out. So that’s a critical thing. If you don’t know the flowrate, then you might make just take and buy two big iron filter and then you’re in trouble. It might work for a few months and then it quits. So you want to make sure you have something that will work and actually take out the rust that’s accumulated in the filter bed.

Okay well, this is going to, basically I’m going to wrap it up. This kind of went out a little longer but it’s a little more complicated subject but like I’ve said if you have any questions you can email me personally at or go on to our website, and get more information there.

To summarize, I talked about the best way to remove iron is by using oxidation and filtration and I talked about how the coated media worked fine but is a thin layer that can generally wear off or wore out quicker and the solid coating and the manganese dioxide media are heavier but they often have a higher throughput flowrate, that is they work faster and requires smaller filter to do the same job as a coated type and I went over and make sure to check for pH, for how much iron and manganese you have to know your well pump flow rate and be on the lookout for iron bacteria and tannins in the well water.

Okay well hey thanks again for listening and I hope you have a great day.


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