Frequently Asked Questions

  • Frequently asked questions about Maxy’s Products

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  • Maxy purification
    • tubesResines_20
    • The U2 and R2 ion exchangers remove, by exchange, all of the adverse ions contained in the water.
      The ACTIVATED CARBON column absorbs the organic components, opacity, odours and chlorine.
      The MICRON ion exchanger retains the micro-organisms, dissolved mineral colloids and submicron particles.
      The FLF terminal element, sterilisable, filters at 0.22 micron all the bacteria in the water.
      Portable water purification stations PUROKIT and OPUR make it possible to obtain a very low level of TOC (Total Organic Carbon).

    Reliability and simplicity of use

    The use of RESINS ALWAYS NEW, who haven’t had to undergo other operation except their preparation, and packaged in cleanest conditions, guarantees performance of a very high constant level.

    Our products work without electric power.

    Columns will be cast when the resins are saturated , * there is no regeneration operation or return to the manufacturer, no waste of time or additional costs .

    The packaging in transparent tube allows you to see the progressive DISCOLORATION of resins ( saturation indicator on U2, R2, and on DEM’O and OPUR stations, penultimate column ) and give up useless auxiliary control devices ( conductivity meter , flowmeter ) .

    The device can handle a pressure of 2.5 kg/cm2 (value of the maximum acceptable head loss at the column outlet), authorising the use downstream of microfilters.

    Its COMPACT SIZE (H : 500 mm – dia. : 60 mm) makes it easy to install where it will be used.

    Although very effective, Maxy products are low cost .

    * Check local regulations , depending on your use.

    Complete installation of a column on a SI or SU bracket

    Remove a saturated column off its fixation

    Installation of the filter FLF

    Replace saturated columns on stations DEM'O or OPUR

    Replace saturated column on station PURO.KIT

    Install the KCR system on a water tap

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Knowledge Base


The water pollutants

IONS, anions and cations, calcium compounds, etc. ..electrically charged, Responsible of water aggressivity, calcium deposit (according to its Ph), alteration assays, affecting the conductivity of the water and “doping” analyses.

ORGANIC COMPONENTS(oils, algae, detergents) creators of opacity, smells, tastes, which can clog pipes or promote microbial growth (food for the bacteria) and quickly clog sterilising microfilters.

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  • BACTERIA AND MICRO-ORGANISMS whose living medium is constantly developed and renewed by contact with organic matter, heat, light, atmospheric pollutants, the walls or simply by stagnation.
    These micro-organisms, with dimensions of 0.4 to 8 microns, are a particular nuisance for the elaboration of the semiconductors, micro-analyses, ultrahigh vacuum gas extraction…

    • Molecular COLLOIDS or MICELLES, made up of a molecule or a protide that, emulsified in the water, repel each other (electric charge of the same sign) creating dynamic balances whose amplitude of movement depends on their surface tension, the presence of electrolyte and temperature.

    The colloids are glucides, metals, oxides, salts, metalloids, having a dimension that may only be 0.05 micron (which makes it impossible to trap them by classical filtration means at reasonable flow rates and pressures).

What is French degree ?

• The water hardness is measured in French degree (1°F = 10 milligrams, equivalent CO3Ca) Below 10°F, “soft” water is responsible for the aggresiveness of water which causes corrosions.

• Above 25°F, hard water causes calcium deposit, clogging pipes, damaging cleaners and steam irons, batteries, radiators, sprinklers, humidifiers, opacifying the optic, causing deposits on laboratory containers, contaminating baths of galvanoplasty.

• Correspondence of the various degrees: French 1°F = German 0,56 ° = English 0,7° = 0,2 milliequivalent litre (meq/1)

What is the principle of ion exchange ?

Ion exchangers are insoluble solids compounds having within their chemical structure mobile ions fixed to the basic structure through chemical groupings named ” functional groupings “.
The chemical nature of the basic structure and that of the functional groupings confer on these ion exchangers of the specific mechanical and chemical characteristics.
Ion exchangers used for water treatment are almost always present in the form of semi- plastic , microporous or macroporous beads. Their diameter is between 0.2 and 2 mm , and their density ( true density ) slightly greater than that of water for some ( 1.03 to 1.1 -1), for higher of other (up 1.25 -1).

Ion exchangers used for water treatment are almost always present in the form of semi- plastic , microporous or macroporous beads. Their diameter is between 0.2 and 2 mm , and their density ( true density ) slightly greater than that of water for some ( 1.03 to 1.1 -1), for higher of other (up 1.25 -1).

The basic structure of these beads is obtained by organic synthesis ( by reacting of polymerisation or copolymerisation of organic compounds ) . They are synthetic resins. Therefore, ion exchangers are commonly referred to as “ion exchange resins ” or more simply ” resins “.
The functional groups are obtained directly during the polymerisation process or by post- treatment of the polymer beads . Each ion exchanger has different affinities for the different water ions with which it is brought into contact . Whenever a resin with ions A for which it has a low affinity is brought into contact with a liquid containing B ions for which the resin has a higher affinity , it is found that the B ions are fixed by the resin which swaps with A ions. Thus , the liquid percolating onto the ion exchanger becomes impoverished in ions B and grows rich in ions A. At the same time the resin becomes depleted of ions A and is enriched in ions B. This ion exchange is carried out electric charge for electric charge . Thus , if A ions, that the resin is the source , are monovalent, and the liquid B has bivalents ions , each time a B ion is fixed on the resin, this one releases on exchange two ions A .