Water Test from daughter's new well just came in, numbers look pretty good and it's approved under EPA standards for domestic use, so there's that.

Two numbers are high:

Iron .61 mg/L (recommended limit is .3)

Manganese .13 mg/L (recommended limit is .05)

pH is 7.27

Is there a cartridge type filter that will help with these numbers?

If not, what is recommended?

In fact, is there really a need for anything at all?

The well at her old place was NASTY and required an expensive and maintenance-intensive multi-stage filtering system and we'd REALLY like to avoid going there again.

My iron level was .81...

my dad put in two filters that use green sand to get the iron out....they are backwashed every two days with a bleach type product....

now the level is zero

and I can tell you that at the EPA allowed level of iron-you can still taste it in the water.

Go see a local well driller or plumber in the area and get the right kind of system for the area she is in.

All of my neighbors use salt to "soften" their water (it takes out the iron) but the discharge for their systems put salt water into their septic system and kills the good bacteria-they will be having poo problems in the future.

The bleach remnants in my system gets discharged elsewhere and not into the septic.

Yup, she had the green sand system at her old house. Backwash on a timer, quarterly ($$$) visits from the water treatment folks to replenish chemicals.

Worked well enough, but an expensive pain in the ass.

She can get the same system and instead of having them re-fill it-she can DIY..

My system uses big ole tablets I put one in every week...the 5gal bucket full of them is about $120-ish and it lasts a year....the initial cost is expensive but for $120-ish a year...it's worth it to me...and barring any tornados or comets the sand should last indefinitely

My well was drilled through 260' of solid Texas limestone. I don't know the actual iron content coming out of my well, but I know it's high enough to require the replacing of a Pentek 20" Big Blue sediment filter at least once a year. It sits just ahead of the water softener and has a deep orange color when I replace it.

Once a month I pour a cup of Iron Out into the saltwater tank to ensure the media stays clean enough to do it's job. I am down to 1000 gallons on the dial in-between regeneration cycles, but that's partly due to the high calcium content of the well water besides the iron content. I know when I need to add the Iron Out when the shower soap no longer feels slick.

My salt water discharge goes directly into the drain leading into the house. Interestingly, I have never had a problem with it killing off bacteria in my aerobic septic system in the 11 years we've lived here. In fact we've only needed 2 septic pump-outs, the last one this year.

The well water here is 17 times harder than the city water supply. We use potassium chloride in a water softener rented from Culligan $23 per 40 lb bag. I bought 4 bags yesterday at Costco.

Salt ruins the plants.

I don't like them locally (cause they prey on the elderly and ignorant), but aqua-clear has a good product that will remove those contaminants.