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What we actually do

From borewell chemistry to permeate at the tap.

Not a bottled-water shop. Mai Fina is a process house: feed analysis, recovery, membrane selection, high-pressure pumping, CIP, controls, delivery, installation and commissioning — written into quotations, delivery notes and service reports.

Industrial & camp RO

Containerized 20,000–100,000 GPD trains for oilfield camps, utilities and factories. Feed analysis first, then array: 8040 BW or SW, 5-element 600 psi vessels, specified HP pump and feed pump, CIP, antiscalant / acid dosing, cluster pre-filter, contactor or PLC panel with dry-run and empty-tank stop. Delivered in 20 ft or 40 ft HC with lighting and cable trays. Installation and commissioning written on the delivery note.

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Seawater & high-TDS SWRO

When borewell TDS leaves the brackish range (ASAB-class 12,300 mg/L and above), the plant is built on full seawater SW 8040 elements — Filmtec / Toray / Hydranautics class — typically 20 elements in 4 × 5-element 600 psi FRP vessels. Higher rejection, safer flux, CIP chemistry sized for SW fouling. Not a BW skid with SW stickers.

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EDI · DI · boiler makeup

RO permeate polished to low µS for boilers, plating and process. Mixed-bed DI cartridges or vessels on small duties; continuous EDI + mixed-bed polish on larger trains. Online conductivity with reject-to-drain or recirculation. Range from 400 GPD laboratory skids to 100,000 GPD DE-M halls.


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Agriculture & farms

Controlled product TDS for hydroponics, date farms and livestock so salinity does not burn root zone or scale drippers. New skids or restoration of existing farms (membrane change-out, vessel work, TDS meter, production recovery). Design on the actual well analysis, not a municipal assumption.

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Bottled water & filling

Factory RO (typically 3 m³/h / ~20,000 GPD class) with sand/carbon, antiscalant, UV and mineral dosing where specified — plus filling-line packages (rinse–fill–cap, cap elevator, conveyors) scoped line-by-line so the client sees what is in Mai Fina supply and what stays on their floor.

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Softeners & AMC

Clack WSITC-S / FRP duplex, jumbo housing, brine tank. AMC covers scheduled visits, regen tests, salt top-up and cartridge change where contracted. Resin and carbon media replacement quoted only if the bed is exhausted. Emergency visit inside 24 hours; 24/7 phone support.

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Hotels & commercial laundry

Two trains on one site: softener on city feed so linen comes out bright and free of scale; MBR recycle on wash + rinse drains so ~70% returns as dedicated final-rinse water. Result is better wash quality, less detergent carry-over, lower DEWA/ADDC and tanker bills.

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Grey water & MBR recycle

Screening → equalisation → biological tank → submerged MBR cassette → disinfection → optional RO polish. Design recovery about 70% of grey / sewer flow as rinse-grade water. Sludge handling and overflow to existing drain remain in the client civil package unless ordered.

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Car-wash recycle — plant room

Not a container in the yard. A tiled equipment room next to the wash hall: floor grate and collection sump, oil-water separator, grit / cyclone, UF or MBR housings, clear product tank, panel. Recycled water feeds the rinse arches; fresh makeup only for a spot-free last pass if specified.

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