Air injection (Micronizer) Vs air injection at the head.

[royerm]

Gidday Everyone...

I have a Culligan Iron remover with the air injection after the pump.
Are the ones with the air injection at the head of the media tank equivalent????

I know mine sludge everything after the Micronizer, specially the valve on the media tank, so I wonder if the head type does that also???

My other dilemma is that with the micronizer, a CSV valve for constant pressure 50Psi would not work to well as with one tap open (1.4GPM) the micronizer would not introduce air .

So, does the air injection at the head works with less flow?????

Thx...

[LLigetfa]

I think the the air needs some time to do its thing before going to the media tank. My system has a precipitation tank before the media tank. The precipitation tanks also takes the place of a bladder tank and provides the air above water storage.

Some systems, like the Iron Curtain uses an air compressor and a spray nozzle in the precipitation tank instead of a micronizer which would not have limited flow problem with a CSV.

[Akpsdvan]

When ever you oxidize iron with air there is going to be the sludge or the iron dropping out and coating any thing and every thing that it flows through.
Now if you try and use a standard micronizer to pull air in, it is going to need at least 5gpm for it to work, and the contest pressure pump works on pressure and not flow, thus the standard micronizer not working and another way of bringing air into the system to treat the iron so that it falls out of the water so that the filter can remove it.
There is the tank with an air pump on it or a second valve say the 2510 set up like a softener with a one way check valve to pull air and not the brine so that there is an air pocket in the upper half of a 12x54 tank.
There are a number of my customers that have the later and about every year or every two years the valves and line between the two need to be cleaned out because of the iron build up.

[royerm]

When ever you oxidize iron with air there is going to be the sludge or the iron dropping out and coating any thing and every thing that it flows through.
Now if you try and use a standard micronizer to pull air in, it is going to need at least 5gpm for it to work, and the contest pressure pump works on pressure and not flow, thus the standard micronizer not working and another way of bringing air into the system to treat the iron so that it falls out of the water so that the filter can remove it.
There is the tank with an air pump on it or a second valve say the 2510 set up like a softener with a one way check valve to pull air and not the brine so that there is an air pocket in the upper half of a 12x54 tank.
There are a number of my customers that have the later and about every year or every two years the valves and line between the two need to be cleaned out because of the iron build up.

Yep ..same here, is it possible that I've seen somewhere a system with only a media tank with an air pump on it??

[Akpsdvan]

Would that not be short changing the time needed to get the iron to fall out so that the media can then remove the iron?

The more time that the air and iron have the more it will fall out of the water that has the iron in it...

It is bad enough that the WaterSoft system needs to have a flow control after the system so that no more than either 5 or 7 gpm flows through the media... Contact time for media and water is the key for it to work and remove the iron.

[royerm]

I'm now to the point of asking myself if Constant pressure is possible with an Iron remover???????

[Akpsdvan]

It is possible to have an iron filter on a constant pressure system.
There are some that will work and some that will not work.

[LLigetfa]

I have a Waterite micronizer with a hose barb on the air intake. My plan is to put a 30 PSI head of air pressure on it which will increase the air injection from 30 PSI of water pressure to around 50 - 60 PSI depending on flow rate. That way I will be able to use a CSV with it. The only thing preventing me from doing it now is the compressor is too noisy to have in the house so I intend to bury a long poly pipe to an out building once the snow melts and the frost leaves the ground.

[LLigetfa]

I'm now to the point of asking myself if Constant pressure is possible with an Iron remover???????

If you are open to adopting different technology, there are several methods of oxidation. Besides aeration, there are also clorine, peroxide, and ozone systems.

[Akpsdvan]

LL, what size tank are you using after you inject the air to the water line?
What kind of contact time do you have for the water and air mix?

[LLigetfa]

I have a Wellmate UT-30 which is rated as 30 gallons. I don't know the exact amount of draw down but suspect it to be around 5 gallons. My pump averages 5 GPM through the micronizer over the 30-50 PSI cycle range. Contact time would vary with GPM drawn. If my math is right, at 5 GPM it should equate to one minute of contact time.

[Akpsdvan]

So you are using a pressure tank for double duty and no use of a say a 10x47 tank.
Is there any kind of flow control after the media unit?

[LLigetfa]

I have but the one tank. It does double duty as both a retention/precipitation tank and as an air-over-water pressure tank. The iron filter by its very nature is a flow limiter. It can exceed the flow rate of the micronizer while it is drawing down storage.

[royerm]

I have a Wellmate UT-30 which is rated as 30 gallons. I don't know the exact amount of draw down but suspect it to be around 5 gallons. .

I have a bladder type Diamond 30 US gallons and at 40-60Psi it says that I get 9.3 Draw and I also cycle for a minute.

[royerm]

It is possible to have an iron filter on a constant pressure system.
There are some that will work and some that will not work.

Can I get a hint of one that will work, would like to see the specs. Thx