Iron in tap water

[Buckeye Hydro]

Your TDS is more important then possible iron levels, as the membrane will clean up the fine iron

Well... not so much.

Iron and RO or RODI filter system do not play well together. Iron will foul the prefilters as well as the membrane. Will also foul ion exchange resin.

In a residential setting, if the iron is troublesome, it is often best to remove it with a point-of-entry system.

Russ

 

[outy]

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Iron and RO or RODI filter system do not play well together. Iron will foul the prefilters as well as the membrane. Will also foul ion exchange resin.


Russ

I have low TDS and very high iron, pre filter goes quickly turning brown, 1 rst carbon stage turns brown as well, Not an issue to change these. about 6 months of high use, its always connected to my ATO for daily use, about 3 G

My membranes last a decade because the TDS is so low [29] I change them out every 5 years or so now. I'm able to run 3 cheap ebay membranes in a water saving configuration and still have 0 TDS before DI resin.

DI resin last over a year. Its never changed colors, less about 30%, I change it out anyway.

 

[Buckeye Hydro]

When you say "high iron"... do you know the amount in mg/l or ppm?

 

[outy]

When you say "high iron"... do you know the amount in mg/l or ppm?

I dosed iron for 6 months for my ATS, big mistake. Following Randys methods and not over doing it.

As far as the house water, To the point drinking water needs to be turned on a bit to let the brown clear up.

To the point water changed in a clean tank with no algae, bring on a one month GHA outbreak. Only way to have a clean tank is to not do water changes. Using nuclear grade resin now to combat this.

I bought my system from you, high quality membrane lasted a decade.

Only good thing is tank absorbs/ uses it up quickly.

 

[Buckeye Hydro]

"High" iron... is a subjective term. As used in the water treatment business, you would have been lucky to get a year out of an RO membrane treating feedwater with "high" iron.

 

[outy]

I have Galvanized pipes which can release iron and cause discoloration. A clear indicator of this is a brown stain on a porcelain sink. Which I have, in a bad way. And they travel 1/4 mile of galvanized before my 120 year old house.

The pipes are a good 60-70 years old [their life expectancy]

 

[Buckeye Hydro]

Ugh. I see some significant re-plumbing in your future!

 

[outy]

Ugh. I see some significant re-plumbing in your future!

Yep. Nitrates and Phosphates low range test zero, but every water change brings on GHA. Been that way for over 25 years. No one has been able to figure it out until I found out Galvanized pipes leech iron. A few pipes have rusted through and replaced.

Will do pvc and cpvc