The Bureau of Indian Standards (BIS) under IS 10500:2012 sets the acceptable iron limit for drinking water at 0.3 mg/L, with a relaxed permissible limit of 1.0 mg/L where no alternative source is available. In many bore water samples collected across Kundrathur and nearby localities, iron concentrations often exceed 2–5 mg/L, making treatment not just advisable but essential for safe daily use.

Yes — they serve different purposes. A regular sediment filter or activated carbon filter is not designed to handle dissolved iron in water. An RO system can partially reduce iron, but high iron levels will quickly damage the RO membrane, making it ineffective and expensive to maintain. An iron removal system is a dedicated pre-treatment solution that specifically targets both dissolved (ferrous) and particulate (ferric) iron, preparing the water for downstream use or further purification through RO or UV systems.

Space requirements depend on the capacity of the system. For a typical household in Kundrathur (500–1000 litres per hour), a single upright filter vessel of approximately 12–16 inches in diameter and 4–5 feet in height is sufficient. For larger residential complexes or commercial setups, multiple vessels may be arranged in parallel. Nollet RO assesses your available utility space during the site visit and recommends the most compact, practical configuration accordingly.

Routine backwashing should be performed once every 2–7 days, depending on your water’s iron load and daily usage volume. This process takes approximately 15–20 minutes and can be done manually or automatically via a timer-controlled valve. The filter media itself typically lasts between 3 to 5 years before requiring replenishment. Nollet RO offers Annual Maintenance Contracts (AMC) that cover scheduled backwash checks, media inspection, and system performance monitoring for complete peace of mind.

Absolutely. Nollet RO designs iron removal systems across a wide capacity range — from compact domestic units handling 300–500 LPH to large-scale community systems capable of managing 5,000–50,000 LPH for apartment complexes, gated communities, schools, and factories. We conduct a site visit, analyse the raw water quality, and custom-engineer a system that matches your daily consumption volume and infrastructure layout in Kundrathur.

Yes. Nollet RO’s systems are configured to address both forms. Ferrous iron (dissolved, colourless) is first oxidised into ferric iron (insoluble, brownish precipitate) through an aeration or chemical oxidation stage. The ferric particles are then captured within the filter media layers. This two-stage approach ensures that even groundwater with high concentrations of dissolved iron — common in bore wells across Kundrathur — is treated comprehensively to meet safe output quality.

The cost varies based on flow rate capacity, type of filter media, automation level (manual vs. automatic backwash), and installation complexity. Entry-level domestic units typically start from a few thousand rupees, while larger industrial systems are priced higher based on specifications. Nollet RO provides a transparent, no-obligation quotation after conducting a free site assessment and water quality test. Contact us at +91 96770 50885 to arrange a visit.