{"id":293,"date":"2026-07-18T15:37:51","date_gmt":"2026-07-18T15:37:51","guid":{"rendered":"https:\/\/oayachtservice.com\/knowledgebase\/?post_type=docs&#038;p=293"},"modified":"2026-07-18T15:37:51","modified_gmt":"2026-07-18T15:37:51","password":"","slug":"spot-zero-xtcii-watermaker","status":"publish","type":"docs","link":"https:\/\/oayachtservice.com\/knowledgebase\/?docs=spot-zero-xtcii-watermaker","title":{"rendered":"Spot Zero XTCII Watermaker"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Flow Chart &amp; Parts Diagram Reference Guide<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">Overview<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Spot Zero XTCII Watermaker System<\/strong> is a high-performance marine water purification system designed to provide high-quality freshwater production onboard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This knowledge base article provides a reference point for the <strong>XTCII system flow diagram, component identification, and parts reference documentation<\/strong>. The attached manufacturer diagrams should be used to identify system components, understand water flow direction, and assist with troubleshooting and preventative maintenance.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">XTCII System Purpose<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The XTCII system uses a combination of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Seawater intake and filtration.<\/li>\n\n\n\n<li>Booster pump supply.<\/li>\n\n\n\n<li>High-pressure reverse osmosis membrane system.<\/li>\n\n\n\n<li>Freshwater flush system.<\/li>\n\n\n\n<li>Product water monitoring.<\/li>\n\n\n\n<li>TDS (Total Dissolved Solids) monitoring.<\/li>\n\n\n\n<li>Automated valves and controls.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The system is designed to provide reliable freshwater production while protecting onboard plumbing and equipment from mineral contamination.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">System Flow Overview<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The general water flow path is:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Seawater Intake<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Seawater enters the system through:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dedicated sea chest \/ seacock.<\/li>\n\n\n\n<li>Intake strainer.<\/li>\n\n\n\n<li>Booster pump supply.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The intake system must remain free of debris and marine growth to maintain proper flow.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. Pre-Filtration<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Incoming seawater passes through filtration components designed to protect downstream equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typical components include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sediment filtration.<\/li>\n\n\n\n<li>Freshwater flush filtration assembly.<\/li>\n\n\n\n<li>Filter housings and sealing components.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Clean filtration is essential for protecting the high-pressure pump and membranes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. High-Pressure Pump &amp; Membrane Assembly<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Filtered seawater is supplied to the high-pressure reverse osmosis system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Main components include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-pressure pump.<\/li>\n\n\n\n<li>Pressure transducers.<\/li>\n\n\n\n<li>Reverse osmosis membrane vessels.<\/li>\n\n\n\n<li>Flow monitoring components.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The membrane separates purified product water from concentrated seawater discharge.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. Product Water Monitoring<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The system monitors:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Product flow.<\/li>\n\n\n\n<li>Water quality through TDS measurement.<\/li>\n\n\n\n<li>System pressures.<\/li>\n\n\n\n<li>Operating status.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The control system uses this information to manage operation and protect system components.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Primary XTCII Components Reference<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The attached diagrams identify common XTCII components including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Booster pump.<\/li>\n\n\n\n<li>High-pressure pump.<\/li>\n\n\n\n<li>Membrane vessels.<\/li>\n\n\n\n<li>Freshwater flush assembly.<\/li>\n\n\n\n<li>Pre-filter assembly.<\/li>\n\n\n\n<li>Touchscreen display.<\/li>\n\n\n\n<li>Pressure sensors.<\/li>\n\n\n\n<li>Flow sensors.<\/li>\n\n\n\n<li>Automated valves.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Common Service Components<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Common replacement and maintenance components may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sediment filters.<\/li>\n\n\n\n<li>Carbon block filters.<\/li>\n\n\n\n<li>Membrane elements.<\/li>\n\n\n\n<li>O-rings and sealing kits.<\/li>\n\n\n\n<li>Touchscreen displays.<\/li>\n\n\n\n<li>Filter housing components.<\/li>\n\n\n\n<li>Freshwater flush components.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Troubleshooting Reference<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">When diagnosing XTCII operation issues, verify:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Low Production or Reduced Flow<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Inspect:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sea strainer condition.<\/li>\n\n\n\n<li>Intake flow.<\/li>\n\n\n\n<li>Pre-filters.<\/li>\n\n\n\n<li>Pump operation.<\/li>\n\n\n\n<li>Membrane condition.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Poor Water Quality \/ High TDS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Check:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Membrane condition.<\/li>\n\n\n\n<li>Proper system pressure.<\/li>\n\n\n\n<li>Product diversion operation.<\/li>\n\n\n\n<li>TDS sensor operation.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">System Will Not Start<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Verify:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Electrical supply.<\/li>\n\n\n\n<li>Control display operation.<\/li>\n\n\n\n<li>Safety shutdown conditions.<\/li>\n\n\n\n<li>Pump and valve status.<\/li>\n\n\n\n<li>Sensor feedback.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Preventative Maintenance<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended maintenance includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Regular inspection of intake strainers.<\/li>\n\n\n\n<li>Filter replacement according to manufacturer recommendations.<\/li>\n\n\n\n<li>Inspection of fittings and hoses.<\/li>\n\n\n\n<li>Monitoring production rate and water quality.<\/li>\n\n\n\n<li>Maintaining accurate service records.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Always follow the official Spot Zero maintenance intervals and procedures for the installed XTCII model.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Reference Documents<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The attached Spot Zero XTCII documentation includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>System flow drawings.<\/li>\n\n\n\n<li>Wiring references.<\/li>\n\n\n\n<li>Component identification.<\/li>\n\n\n\n<li>Configuration workbook.<\/li>\n\n\n\n<li>Parts diagrams.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These documents should be retained as part of the vessel\u2019s technical reference library.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">This guide is intended as a supplemental <strong>Ocean Alexander Knowledge Base reference<\/strong> and does not replace the official Spot Zero installation, operation, or service manuals.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/oayachtservice.com\/KBMedia\/XTC.png\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>East Coast Yacht Group<\/strong><br>2955 West State Road 84<br>Fort Lauderdale, FL 33312<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>Service Department<\/strong><br>954.530.2033<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Contact our Service Department today to learn how we can help ensure safe and peak performance for your vessel.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flow Chart &amp; Parts Diagram Reference Guide Overview The Spot Zero XTCII Watermaker System is a high-performance marine water purification system designed to provide high-quality freshwater production onboard. This knowledge base article provides a reference point for the XTCII system flow diagram, component identification, and parts reference documentation. The attached manufacturer diagrams should be used &#8230; <a title=\"Spot Zero XTCII Watermaker\" class=\"read-more\" href=\"https:\/\/oayachtservice.com\/knowledgebase\/?docs=spot-zero-xtcii-watermaker\" aria-label=\"Read more about Spot Zero XTCII Watermaker\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[5],"doc_tag":[],"class_list":["post-293","docs","type-docs","status-publish","hentry","doc_category-plumbing"],"year_month":"2026-07","word_count":527,"total_views":0,"reactions":{"happy":0,"normal":0,"sad":0},"author_info":{"name":"admin","author_nicename":"oaadmin","author_url":"https:\/\/oayachtservice.com\/knowledgebase\/?author=1"},"doc_category_info":[{"term_name":"Plumbing","term_url":"https:\/\/oayachtservice.com\/knowledgebase\/?doc_category=plumbing"}],"doc_tag_info":[],"_links":{"self":[{"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=\/wp\/v2\/docs\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=293"}],"version-history":[{"count":1,"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=\/wp\/v2\/docs\/293\/revisions"}],"predecessor-version":[{"id":294,"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=\/wp\/v2\/docs\/293\/revisions\/294"}],"wp:attachment":[{"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=293"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=%2Fwp%2Fv2%2Fdoc_category&post=293"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/oayachtservice.com\/knowledgebase\/index.php?rest_route=%2Fwp%2Fv2%2Fdoc_tag&post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}