{"id":7349,"date":"2026-05-18T11:15:38","date_gmt":"2026-05-18T09:15:38","guid":{"rendered":"https:\/\/marlintechnologies.co.za\/mtg\/?post_type=portfolio&#038;p=7349"},"modified":"2026-05-18T11:15:39","modified_gmt":"2026-05-18T09:15:39","slug":"st-johns-dsg","status":"publish","type":"portfolio","link":"https:\/\/marlintechnologies.co.za\/mtg\/portfolio\/st-johns-dsg\/","title":{"rendered":"St John\u2019s DSG Water Security &amp; Treatment Solution"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">St John\u2019s Diocesan School for Girls was experiencing frequent water interruptions and significant leaks that disrupted daily operations and diverted focus away from education.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To resolve these challenges, the school partnered with Marlin Technologies Group (MTG) to implement a reliable, independent water supply using on-site groundwater.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Project Overview<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MTG designed and installed a high-capacity water treatment plant tailored to the school\u2019s needs, ensuring a consistent supply of safe, high-quality water.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>System Design &amp; Components<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The system processes <strong>60,000 litres of water per day<\/strong> and includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Two 10,000-litre raw water storage tanks<\/li>\n\n\n\n<li>Booster pump system to maintain consistent flow through the treatment process<\/li>\n\n\n\n<li>DMI-65 filtration for effective removal of manganese<\/li>\n\n\n\n<li>AFM filtration for sediment removal<\/li>\n\n\n\n<li>Water softening system to reduce hardness<\/li>\n\n\n\n<li>Activated carbon filtration to improve taste, clarity, and odour<\/li>\n\n\n\n<li>Chlorination system for disinfection and bacteria control<\/li>\n\n\n\n<li>Sodium hydroxide dosing for pH balancing<\/li>\n\n\n\n<li>A 193,000-litre bulk storage reservoir for treated water<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Results &amp; Benefits<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<strong>Water independence<\/strong><br>The school now relies on its own underground water source, reducing dependence on municipal supply.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Cost savings &amp; ROI<\/strong><br>Lower municipal water usage with an estimated return on investment within <strong>36 months<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reliable supply &amp; performance<\/strong><br>Consistent water flow and pressure across all facilities ensure uninterrupted daily operations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<strong>High-quality, safe water<\/strong><br>Advanced treatment processes deliver clean, balanced, and safe water for consumption.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Empowering Education Through Reliable Infrastructure<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This project demonstrates MTG\u2019s commitment to delivering sustainable, high-performance water solutions for educational institutions. 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To resolve these challenges, the school partnered with Marlin Technologies Group (MTG) to implement a reliable, independent water supply using on-site groundwater. Project Overview MTG designed and installed a high-capacity water [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"portfolio_category":[],"portfolio_tag":[],"class_list":["post-7349","portfolio","type-portfolio","status-publish","format-standard","hentry","entry"],"_links":{"self":[{"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/portfolio\/7349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/portfolio"}],"about":[{"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/types\/portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/comments?post=7349"}],"version-history":[{"count":1,"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/portfolio\/7349\/revisions"}],"predecessor-version":[{"id":7355,"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/portfolio\/7349\/revisions\/7355"}],"wp:attachment":[{"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/media?parent=7349"}],"wp:term":[{"taxonomy":"portfolio_category","embeddable":true,"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/portfolio_category?post=7349"},{"taxonomy":"portfolio_tag","embeddable":true,"href":"https:\/\/marlintechnologies.co.za\/mtg\/wp-json\/wp\/v2\/portfolio_tag?post=7349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}