{"id":4634,"date":"2025-09-22T10:09:42","date_gmt":"2025-09-22T08:09:42","guid":{"rendered":"https:\/\/decker-vt.de\/maintenance-and-service\/"},"modified":"2026-02-10T10:23:30","modified_gmt":"2026-02-10T09:23:30","slug":"maintenance-and-service","status":"publish","type":"page","link":"https:\/\/decker-vt.de\/en\/services\/maintenance-and-service\/","title":{"rendered":"Maintenance and service"},"content":{"rendered":"\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained gs_6LDWto group_wrap\">\n<h1 class=\"wp-block-heading\">Overview maintenance and service<\/h1>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-tertiary-background-color has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained gs_vdS0mp group_wrap\">\n<div id=\"greyd-69d78dff79ca6\" class=\"wp-block-greyd-box aligncenter gs_f6NBoR greyd-content-box gs_f6NBoR flex-justify-center\">\n<h2 class=\"wp-block-heading\">Maintenance of your system by trained specialised staff<\/h2>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\"><div  class=\"gs_2rZBwY alignwide\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-04293b2c wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column col-12 col-sm-6 col-md-4 col-lg-auto is-layout-flow wp-block-column-is-layout-flow\"><figure style=\"padding-top:0;margin-top:0;margin-bottom:0;\" class=\"wp-block-image greyd-image  aligncenter gs_ThxPPc\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/09\/Montage-1024x683.jpg\" class=\"wp-image-496\" alt=\"Montage\" srcset=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/09\/Montage-1024x683.jpg 1024w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/09\/Montage-300x200.jpg 300w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/09\/Montage-768x512.jpg 768w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/09\/Montage-1536x1024.jpg 1536w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/09\/Montage.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<figure style=\"padding-top:var(--wp--preset--spacing--small);margin-top:0;margin-bottom:0;\" class=\"wp-block-image greyd-image  aligncenter gs_oJ3uxO\"><img loading=\"lazy\" decoding=\"async\" width=\"896\" height=\"597\" src=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagen.jpg\" class=\"wp-image-4319\" alt=\"Wartung-an-Abwasseranlagen\" srcset=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagen.jpg 896w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagen-300x200.jpg 300w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagen-768x512.jpg 768w\" sizes=\"auto, (max-width: 896px) 100vw, 896px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-column col-12 col-sm-6 col-md-4 col-lg-auto is-layout-flow wp-block-column-is-layout-flow\"><figure style=\"padding-top:0;margin-top:0;margin-bottom:0;\" class=\"wp-block-image greyd-image  aligncenter gs_pKJ3Kx\"><img loading=\"lazy\" decoding=\"async\" width=\"912\" height=\"608\" src=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagenzubehoer.jpg\" class=\"wp-image-4320\" alt=\"Wartung-an-Abwasseranlagenzubehoer\" srcset=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagenzubehoer.jpg 912w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagenzubehoer-300x200.jpg 300w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-Abwasseranlagenzubehoer-768x512.jpg 768w\" sizes=\"auto, (max-width: 912px) 100vw, 912px\" \/><\/figure>\n\n<figure style=\"padding-top:var(--wp--preset--spacing--small);margin-top:0;margin-bottom:0;\" class=\"wp-block-image greyd-image  aligncenter gs_ATo1mv\"><img loading=\"lazy\" decoding=\"async\" width=\"584\" height=\"876\" src=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-AwSV-LAU-Anlagen-Saeuretanks.jpg\" class=\"wp-image-4318\" alt=\"Wartung-an-AwSV-LAU-Anlagen-Saeuretanks\" srcset=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-AwSV-LAU-Anlagen-Saeuretanks.jpg 584w, https:\/\/decker-vt.de\/wp-content\/uploads\/2025\/10\/Wartung-an-AwSV-LAU-Anlagen-Saeuretanks-200x300.jpg 200w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/figure><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Maintenance of wastewater system<\/h3>\n\n\n\n<p>Depending on their design, <a href=\"https:\/\/decker-vt.de\/en\/products\/chemical-physical-wastewater-system\/\">chemical-physical wastewater systems <\/a>must be operated in accordance with \u00a7 Section 60 paragraph 1 WHG (Water Resources Act) in accordance with the state of technology or the generally recognized rules of technology. This can be done by expert operating personnel or by an external company. The requirements for expertise are defined in DWA-M 1000. In addition to the <a href=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2026\/01\/Zertifikat-ISO-9001-14001-Decker.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Quality assurance system<\/a>(e.g. ISO 9001) and a certified <a href=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2026\/01\/Fachbetrieb-nach-WHG-DECKER.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">WHG specialist company certificate<\/a> (e.g. for maintenance work on AwSV-LAU systems (chemical storage tanks)), the specialists (internal or external) actually carrying out the work must have appropriate training in the respective profession, demonstrable knowledge of civil, administrative and environmental criminal law, industrial safety and the generally recognized rules of technology, which must be checked by the responsible operator manager.<\/p>\n\n\n\n<p>Appropriately <a href=\"https:\/\/decker-vt.de\/en\/services\/training\/\">trained<\/a> personnel are available for the maintenance of systems, including those from other manufacturers, within the scope of the service range, i.e. industrial, <a href=\"https:\/\/decker-vt.de\/en\/products\/chemical-physical-wastewater-system\/\">chemical-physical wastewater treatment systems<\/a>.<\/p>\n<\/div>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--large)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-greyd-accordion gs_rUG8WJ hasiconleft\" data-autoclose=\"true\" data-openfirst=\"false\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">\n<div class=\"wp-block-greyd-accordion-item\"><button class=\"wp-block-greyd-accordion__title\" role=\"button\" type=\"button\" aria-expanded=\"false\" aria-controls=\"sect-nhwk-2\" id=\"title-nhwk-2\"><span><strong>Maintenance of external systems<\/strong><\/span><span class=\"icon icon-normal arrow_carrot-down\" aria-hidden=\"true\"><\/span><span class=\"icon icon-active arrow_carrot-up\" aria-hidden=\"true\"><\/span><\/button><div class=\"wp-block-greyd-accordion__content\" role=\"region\" id=\"sect-nhwk-2\" aria-labelledby=\"title-nhwk-2\" hidden>\n<p>The maintenance of third-party systems is possible, but first requires an engineering survey of the system, which can take between a few hours and days (in advance or together with maintenance), depending on the complexity. As part of the survey, the system is checked to ensure that it is fundamentally capable of achieving the cleaning results appropriate to its type when operated properly. <\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-greyd-accordion-item\"><button class=\"wp-block-greyd-accordion__title\" role=\"button\" type=\"button\" aria-expanded=\"false\" aria-controls=\"sect-ifa5-3\" id=\"title-ifa5-3\"><span><strong>Typical test parameters:<\/strong><\/span><span class=\"icon icon-normal arrow_carrot-down\" aria-hidden=\"true\"><\/span><span class=\"icon icon-active arrow_carrot-up\" aria-hidden=\"true\"><\/span><\/button><div class=\"wp-block-greyd-accordion__content\" role=\"region\" id=\"sect-ifa5-3\" aria-labelledby=\"title-ifa5-3\" hidden>\n<p>As part of the actual maintenance, the system \u2013 depending on the version \u2013 is checked for its MRS (measurment and control technology) and process-related parameters.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Corrosions<\/li>\n\n\n\n<li>Leakages<\/li>\n\n\n\n<li>Corrosions<\/li>\n\n\n\n<li>Float switch<\/li>\n\n\n\n<li>Ball valves and diaphragm valves<\/li>\n\n\n\n<li>Container\/AwSV(WHG) container<\/li>\n\n\n\n<li>Feed pumps<\/li>\n\n\n\n<li>Feed pumps<\/li>\n\n\n\n<li>Sand\/gravel filter; check, replacement if necessary<\/li>\n\n\n\n<li>Selective ion exchanger; inspection, replacement if necessary (see maintenance of ion exchanger systems \/ selective ion exchanger systems)<\/li>\n\n\n\n<li>MSR (measurement and control technology) such as pH\/redox including signal transmission and reporting chain<\/li>\n\n\n\n<li>Switch cabinet<\/li>\n\n\n\n<li>Documentation<\/li>\n\n\n\n<li>AwSV (Installations for handling substances hazardous to water) (WHG \u2013 Water Resources Act) limit value transmitters\/level probes<\/li>\n\n\n\n<li>Stockpiling<\/li>\n\n\n\n<li>Waste water treatment<\/li>\n\n\n\n<li>Waste water samples<\/li>\n\n\n\n<li>Condition of the overall system<\/li>\n<\/ul>\n<\/div><\/div>\n<style class=\"greyd-styles\">.gs_rUG8WJ .wp-block-greyd-accordion-item { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .gs_rUG8WJ .wp-block-greyd-accordion-item:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_rUG8WJ .wp-block-greyd-accordion-item :checked + * { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><style class=\"greyd-styles\">. { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_rUG8WJ .wp-block-greyd-accordion__title[aria-expanded=\"true\"] { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Maintenance of multi-layer filters, gravel filters and gravel replacement<\/h3>\n\n\n\n<p>Filter systems are often part of <a href=\"https:\/\/decker-vt.de\/en\/products\/chemical-physical-wastewater-system\/\">chemical-physical wastewater systems<\/a>. Depending on the filling, these are called sand filters, gravel filters, multi-layer filters or media filters. In addition to regular backwashing, and particularly in the case of multi-layer filters with an activated carbon layer, these require regular refilling of the activated carbon by the operator. In addition to the actual maintenance of the system mimicry, the contents of the gravel filter may also be emptied as part of the maintenance. If there is a clogging, e.g. due to a clear water discharge before the end of the sedimentation phase in a batch treatment, it is determined whether this can be treated chemically and what the cause is, as the mining removal of clogging in gravel filters is often not very economical.    <\/p>\n\n\n\n<p>Larger quantities of filter medium are emptied using suction or turbine trolleys.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Maintenance of ion exchanger system and resin change<\/h3>\n\n\n\n<p>An<a href=\"https:\/\/decker-vt.de\/en\/products\/ion-exchanger-system\/\"> ion exchanger system<\/a> and <a href=\"https:\/\/decker-vt.de\/en\/products\/selective-ion-exchanger-system\/\">selective exchanger system<\/a> are filled with <a href=\"https:\/\/decker-vt.de\/en\/products\/ion-exchangers\/\">ion exchangers<\/a> that are subject to wear. Depending on the application and resin, it may be necessary to replace the resin or the <a href=\"https:\/\/decker-vt.de\/wechsel-ionenaustauscher\/\" data-type=\"link\" data-id=\"https:\/\/decker-vt.de\/wechsel-ionenaustauscher\/\">ion exchanger <\/a>after a few years. Cation exchange resins have a typical service life of 10-15 years, anion exchange resins of 7 to 10 years, although this can be reduced to less than 2 years due to demanding operating conditions such as oxidative substances, biology or mineral oils.  <\/p>\n\n\n\n<p>Depending on the ingredients present in the inflow to the ion exchanger, precipitation may occur in the resin bed as an undesirable reaction. To remove some of these precipitation products, input materials that are otherwise incompatible with ion exchange resins must sometimes be used in order to dissolve the precipitation products via chemical conversion. Alternatively, a resin exchange and separation of the wastewater streams can be the result.  <\/p>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--large)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-greyd-accordion gs_ElZc8v hasiconleft\" data-autoclose=\"true\" data-openfirst=\"false\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">\n<div class=\"wp-block-greyd-accordion-item\"><button class=\"wp-block-greyd-accordion__title\" role=\"button\" type=\"button\" aria-expanded=\"false\" aria-controls=\"sect-nhwk-4\" id=\"title-nhwk-4\"><span><strong>Typical test parameters:<\/strong><\/span><span class=\"icon icon-normal arrow_carrot-down\" aria-hidden=\"true\"><\/span><span class=\"icon icon-active arrow_carrot-up\" aria-hidden=\"true\"><\/span><\/button><div class=\"wp-block-greyd-accordion__content\" role=\"region\" id=\"sect-nhwk-4\" aria-labelledby=\"title-nhwk-4\" hidden>\n<ul class=\"wp-block-list\">\n<li>Corrosions<\/li>\n\n\n\n<li>Leakages<\/li>\n\n\n\n<li>Flow meter and float switch<\/li>\n\n\n\n<li>Ball valves and diaphragm valves<\/li>\n\n\n\n<li>Safety devices<\/li>\n\n\n\n<li>Resin sieves<\/li>\n\n\n\n<li>Checking measurement and control technology (MSR), such as conductivity probes and transmitters as well as switching functions<\/li>\n\n\n\n<li>Stockpiling wear parts<\/li>\n\n\n\n<li>Regeneration monitoring with regard to chemical requirements, concentrations, water requirements, time and pressure<\/li>\n\n\n\n<li>Resin tests with regard to the usable volume capacity<\/li>\n\n\n\n<li>Resin level<\/li>\n\n\n\n<li>Documentation<\/li>\n<\/ul>\n<\/div><\/div>\n<style class=\"greyd-styles\">.gs_ElZc8v .wp-block-greyd-accordion-item { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .gs_ElZc8v .wp-block-greyd-accordion-item:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_ElZc8v .wp-block-greyd-accordion-item :checked + * { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><style class=\"greyd-styles\">. { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_ElZc8v .wp-block-greyd-accordion__title[aria-expanded=\"true\"] { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Maintenance AwSV system, acid storage tank<\/h3>\n\n\n\n<p>Chemical storage tanks from 220L (e.g. for hydrochloric acid and caustic soda) are so-called AwSV storage systems (storage, filling and handling (LAU) systems) and require regular, at least annual, maintenance in accordance with <a href=\"https:\/\/www.gesetze-im-internet.de\/awsv\/\" target=\"_blank\" rel=\"noopener\">AwSV<\/a>. Up to hazard level B, this can generally be carried out by the operator\u2019s own expert personnel for completely visible, above-ground systems. In all other cases, a <a href=\"https:\/\/decker-vt.de\/wp-content\/uploads\/2026\/01\/Fachbetrieb-nach-WHG-DECKER.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">WHG specialist company<\/a> is required. In particular, this also applies to installations that are hazard level A installations, but which are not completely visibly installed including the pipelines associated with the system (e.g. via a wall duct).<\/p>\n\n\n\n<p>As part of the maintenance, the tank and the associated piping are inspected, the system documentation is inspected and the tank\u2019s safety devices are checked.<br><\/p>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--large)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-greyd-accordion gs_YVGzem hasiconleft\" data-autoclose=\"true\" data-openfirst=\"false\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">\n<div class=\"wp-block-greyd-accordion-item\"><button class=\"wp-block-greyd-accordion__title\" role=\"button\" type=\"button\" aria-expanded=\"false\" aria-controls=\"sect-nhwk-5\" id=\"title-nhwk-5\"><span><strong>Typical test parameters:<\/strong><\/span><span class=\"icon icon-normal arrow_carrot-down\" aria-hidden=\"true\"><\/span><span class=\"icon icon-active arrow_carrot-up\" aria-hidden=\"true\"><\/span><\/button><div class=\"wp-block-greyd-accordion__content\" role=\"region\" id=\"sect-nhwk-5\" aria-labelledby=\"title-nhwk-5\" hidden>\n<ul class=\"wp-block-list\">\n<li>Overfill protection (MAX-MAX probe, e.g. Maximat or Liquifant)<\/li>\n\n\n\n<li>Level sensor or limit value sensor (MAX sensor)<\/li>\n\n\n\n<li>Level probes<\/li>\n\n\n\n<li>Leakage warning probe<\/li>\n\n\n\n<li>German Institute for Structural Engineering (DiBt) approval in each case<\/li>\n\n\n\n<li>Test method in each case<\/li>\n\n\n\n<li>Filling\/dosing valves, ball valves and diaphragm valves<\/li>\n\n\n\n<li>Line test Filling\/withdrawal<\/li>\n\n\n\n<li>Connections<\/li>\n\n\n\n<li>Ventilation<\/li>\n\n\n\n<li>Other components<\/li>\n\n\n\n<li>Message chain<\/li>\n\n\n\n<li>Documentation<\/li>\n\n\n\n<li>Test instructions acc. German Institute for Structural Engineering (DiBt) media list 40.1 <\/li>\n<\/ul>\n<\/div><\/div>\n<style class=\"greyd-styles\">.gs_YVGzem .wp-block-greyd-accordion-item { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .gs_YVGzem .wp-block-greyd-accordion-item:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_YVGzem .wp-block-greyd-accordion-item :checked + * { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><style class=\"greyd-styles\">. { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_YVGzem .wp-block-greyd-accordion__title[aria-expanded=\"true\"] { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Industrial Reverse osmosis system Maintenance<\/h3>\n\n\n\n<p>An <a href=\"https:\/\/decker-vt.de\/en\/products\/reverse-osmosis-system-industry\/\">industrial reverse osmosis system<\/a>, including the necessary pre-treatment such as system separators, softening, etc., requires regular maintenance over its entire service life. According to DIN EN 806-5:2012-04 Annex A.1 in conjunction with DIN EN 12729:2020, an inspection by the operator at least every six months and annual maintenance of the system separator at the drinking water network transfer point is required.  <\/p>\n\n\n\n<p>As part of the maintenance of a reverse osmosis system (RO system), the various operating parameters of the system and any ancillary systems, such as upstream softeners, system separators, etc., are checked and any safety systems are triggered. Typically, the membranes in reverse osmosis systems are replaced after between 5-7 years, depending on how much they are used. Indicators that a membrane change may be necessary at an earlier stage are, for example, an increase in the required pressure of the high-pressure pump and\/or a drop in the permeate output at a constant temperature.  <\/p>\n\n\n\n<div style=\"height:var(--wp--preset--spacing--large)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-greyd-accordion gs_KMse4N hasiconleft\" data-autoclose=\"true\" data-openfirst=\"false\" style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">\n<div class=\"wp-block-greyd-accordion-item\"><button class=\"wp-block-greyd-accordion__title\" role=\"button\" type=\"button\" aria-expanded=\"false\" aria-controls=\"sect-nhwk-6\" id=\"title-nhwk-6\"><span><strong>Typical test parameters:<\/strong><\/span><span class=\"icon icon-normal arrow_carrot-down\" aria-hidden=\"true\"><\/span><span class=\"icon icon-active arrow_carrot-up\" aria-hidden=\"true\"><\/span><\/button><div class=\"wp-block-greyd-accordion__content\" role=\"region\" id=\"sect-nhwk-6\" aria-labelledby=\"title-nhwk-6\" hidden>\n<ul class=\"wp-block-list\">\n<li>System separator<\/li>\n\n\n\n<li>Float switch<\/li>\n\n\n\n<li>Ball valves and diaphragm valves<\/li>\n\n\n\n<li>Flow rate elevations for concentrate, permeate, feed and, if necessary, recirculation<\/li>\n\n\n\n<li>Print liftings<\/li>\n\n\n\n<li>Conductivity \/ pH measurement and calibration if necessary<\/li>\n\n\n\n<li>Cleaning measures on the membrane if necessary and possible depending on the type of system (e.g. alkaline-acid-alkaline, or so-called water brush)<\/li>\n\n\n\n<li>Diaphragm change<\/li>\n\n\n\n<li>Hardness measurement<\/li>\n\n\n\n<li>Safety checks such as hardness breakthrough, lack of pressure<\/li>\n\n\n\n<li>Filter change<\/li>\n<\/ul>\n<\/div><\/div>\n<style class=\"greyd-styles\">.gs_KMse4N .wp-block-greyd-accordion-item { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .gs_KMse4N .wp-block-greyd-accordion-item:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_KMse4N .wp-block-greyd-accordion-item :checked + * { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><style class=\"greyd-styles\">. { --accord-title-bg-color: var(--wp--preset--color--tertiary); --accord-title-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); --accord-text-color: var(--wp--preset--color--foreground); --accord-icon-font-size: 1.8em; --accord-title-font-size: 1.3em; --accord-content-margin-bottom: 0px; --accord-padding: 0 0 1rem 0; --accord-content-padding: 0px 0 0 0; --accord-transition-duration: 1.2s; } .:hover { --accord-title-text-color: var(--wp--preset--color--primary); } .gs_KMse4N .wp-block-greyd-accordion__title[aria-expanded=\"true\"] { --accord-title-text-color: var(--wp--preset--color--primary); --accord-text-color: var(--wp--preset--color--secondary); --accord-bg-color: var(--wp--preset--color--tertiary); } <\/style><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Overview maintenance and service Maintenance of multi-layer filters, gravel filters and gravel replacement Filter systems are often part of chemical-physical wastewater systems. Depending on the filling, these are called sand filters, gravel filters, multi-layer filters or media filters. In addition to regular backwashing, and particularly in the case of multi-layer filters with an activated carbon [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":4663,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"greyd_block_editor_preview":[],"footnotes":""},"class_list":["post-4634","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/pages\/4634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/comments?post=4634"}],"version-history":[{"count":8,"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/pages\/4634\/revisions"}],"predecessor-version":[{"id":5474,"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/pages\/4634\/revisions\/5474"}],"up":[{"embeddable":true,"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/pages\/4663"}],"wp:attachment":[{"href":"https:\/\/decker-vt.de\/en\/wp-json\/wp\/v2\/media?parent=4634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}