🧼 Stage 1: Chlorine Removal System (Right Tank – “ACC”)
Purpose: Removes chlorine and chloramines from city water.
Media: Typically filled with catalytic carbon or activated carbon.
Benefits:
* Improves taste and odor.
Protects downstream softener resin from chlorine damage.
* Reduces skin and hair irritation during bathing.
* This tank acts as a pre-filter, ensuring that chemical disinfectants are stripped before water moves to the softener.

💧 Stage 2: Water Softener (Middle Tank – “AXO”)
Purpose: Removes hardness minerals like calcium and magnesium.
Media: Ion-exchange resin.
Benefits:
* Prevents scale buildup in pipes and appliances.
* Improves soap efficiency and skin feel.
* Extends lifespan of water heaters and fixtures.
* This system regenerates using solar salt, stored in the brine tanks visible in front.

🚱 Stage 3: Nitrate Removal System (Left Tank – “2.5NR”)
Purpose: Removes nitrates from well or city water.
Media: Specialized nitrate-selective resin.
Benefits:
* Protects infants and pregnant women from nitrate exposure.
* Keeps nitrate levels below EPA’s 10 mg/L limit. Removes upto 90% nitrates from city/well water.

Nitrate contamination in Iowa is driven primarily by agricultural runoff — including fertilizer from corn and soybean fields, manure from CAFOs, and tile drainage systems that rapidly carry nitrates into rivers and aquifers — with smaller contributions from residential and commercial lawn fertilizers, atmospheric deposition, and minimal influence from industrial waste.

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