{"id":20751,"date":"2023-07-31T14:29:03","date_gmt":"2023-07-31T07:29:03","guid":{"rendered":"https:\/\/marico.com.vn\/pool-spa-hardness\/"},"modified":"2026-03-20T09:21:43","modified_gmt":"2026-03-20T02:21:43","slug":"pool-spa-hardness","status":"publish","type":"product","link":"https:\/\/marico.com.vn\/en\/products\/pool-spa-hardness\/","title":{"rendered":"POOL &#038; SPA HARDNESS"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_58 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >N\u1ed9i dung b&agrave;i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-69f608bd337dd\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-69f608bd337dd\"  type=\"checkbox\" id=\"item-69f608bd337dd\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/marico.com.vn\/en\/products\/pool-spa-hardness\/#POOL_SPA_HARDNESS\" title=\"POOL &amp; SPA HARDNESS\">POOL &amp; SPA HARDNESS<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/marico.com.vn\/en\/products\/pool-spa-hardness\/#DESCRIPTION\" title=\"DESCRIPTION\">DESCRIPTION<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/marico.com.vn\/en\/products\/pool-spa-hardness\/#APPLICATIONS\" title=\"APPLICATIONS\">APPLICATIONS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/marico.com.vn\/en\/products\/pool-spa-hardness\/#DIRECTION_FOR_USE_%E2%80%93_PRODUCT_DOSE\" title=\"DIRECTION FOR USE &#8211; PRODUCT DOSE\">DIRECTION FOR USE &#8211; PRODUCT DOSE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/marico.com.vn\/en\/products\/pool-spa-hardness\/#PRODUCT_CHARACTERISTICS\" title=\"PRODUCT CHARACTERISTICS\">PRODUCT CHARACTERISTICS<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 data-path-to-node=\"2\"><span class=\"ez-toc-section\" id=\"POOL_SPA_HARDNESS\"><\/span><b data-path-to-node=\"2\" data-index-in-node=\"0\">POOL &amp; SPA HARDNESS<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">High-purity calcium hardness increaser for pools, spas, and hot tubs<\/b><\/p>\n<ul data-path-to-node=\"4\">\n<li>\n<p data-path-to-node=\"4,0,0\">Raises calcium hardness levels to prevent corrosive water conditions<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,1,0\">Assists in the prevention of etched plaster and surface distortion<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,2,0\">Helps prevent staining and abrasive surfaces for bather comfort<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,3,0\">Reduces algae problems by maintaining smooth, easy-to-clean surfaces<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,4,0\">100% active formula suitable for multi-use applications<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"5\" \/>\n<h3 data-path-to-node=\"6\"><span class=\"ez-toc-section\" id=\"DESCRIPTION\"><\/span><b data-path-to-node=\"6\" data-index-in-node=\"0\">DESCRIPTION<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"7\">Pool &amp; Spa Hardness is specifically formulated to raise the calcium hardness of water in recreational facilities. Low calcium levels can lead to corrosive water that damages pool surfaces and equipment. By maintaining the correct hardness balance, this product protects against costly repairs such as etched plaster and stained finishes.<\/p>\n<hr data-path-to-node=\"8\" \/>\n<h3 data-path-to-node=\"9\"><span class=\"ez-toc-section\" id=\"APPLICATIONS\"><\/span><b data-path-to-node=\"9\" data-index-in-node=\"0\">APPLICATIONS<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"10\">Used to correct calcium deficiency in all types of pool and spa surfaces. Ideal bathing conditions require a pH level of 7.2 &#8211; 7.6 and total alkalinity of 80 &#8211; 150 mg\/l. Maintaining these levels ensures that all other pool chemicals function at peak efficiency while providing a comfortable environment for swimmers.<\/p>\n<hr data-path-to-node=\"11\" \/>\n<h3 data-path-to-node=\"12\"><span class=\"ez-toc-section\" id=\"DIRECTION_FOR_USE_%E2%80%93_PRODUCT_DOSE\"><\/span><b data-path-to-node=\"12\" data-index-in-node=\"0\">DIRECTION FOR USE &#8211; PRODUCT DOSE<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"13\">Add Pool &amp; Spa Hardness Increaser at the rate of 100g per 10m\u00b3 to raise calcium hardness by 10 mg\/l. Dissolve the granules in a clean container of water first, then pour slowly around the pool perimeter. Keep the pump and filter running during application to ensure effective circulation. Re-test and adjust as necessary.<\/p>\n<hr data-path-to-node=\"14\" \/>\n<h3 data-path-to-node=\"15\"><span class=\"ez-toc-section\" id=\"PRODUCT_CHARACTERISTICS\"><\/span><b data-path-to-node=\"15\" data-index-in-node=\"0\">PRODUCT CHARACTERISTICS<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table style=\"width: 67.3131%;\" data-path-to-node=\"16\">\n<thead>\n<tr>\n<td style=\"width: 24.8668%; text-align: center;\"><strong>Feature<\/strong><\/td>\n<td style=\"width: 150.089%; text-align: center;\"><strong>Details<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"width: 24.8668%; text-align: center;\"><span data-path-to-node=\"16,1,0,0\"><b data-path-to-node=\"16,1,0,0\" data-index-in-node=\"0\">Appearance<\/b><\/span><\/td>\n<td style=\"width: 150.089%; text-align: center;\"><span data-path-to-node=\"16,1,1,0\">White<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 24.8668%; text-align: center;\"><span data-path-to-node=\"16,2,0,0\"><b data-path-to-node=\"16,2,0,0\" data-index-in-node=\"0\">Form<\/b><\/span><\/td>\n<td style=\"width: 150.089%; text-align: center;\"><span data-path-to-node=\"16,2,1,0\">Granules<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 24.8668%; text-align: center;\"><span data-path-to-node=\"16,3,0,0\"><b data-path-to-node=\"16,3,0,0\" data-index-in-node=\"0\">Solubility<\/b><\/span><\/td>\n<td style=\"width: 150.089%; text-align: center;\"><span data-path-to-node=\"16,3,1,0\">Soluble in water<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 24.8668%; text-align: center;\"><span data-path-to-node=\"16,4,0,0\"><b data-path-to-node=\"16,4,0,0\" data-index-in-node=\"0\">Code<\/b><\/span><\/td>\n<td style=\"width: 150.089%; text-align: center;\"><span data-path-to-node=\"16,4,1,0\">161162419<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>POOL &amp; SPA HARDNESS High-purity calcium hardness increaser for pools, spas, and hot tubs Raises calcium hardness levels to prevent corrosive water conditions Assists in the prevention of etched plaster and surface distortion Helps prevent staining and abrasive surfaces for [&hellip;]<\/p>\n","protected":false},"featured_media":13294,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[828,824,823],"product_tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/product\/20751"}],"collection":[{"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/comments?post=20751"}],"version-history":[{"count":2,"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/product\/20751\/revisions"}],"predecessor-version":[{"id":20906,"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/product\/20751\/revisions\/20906"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/media\/13294"}],"wp:attachment":[{"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/media?parent=20751"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/product_cat?post=20751"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/marico.com.vn\/en\/wp-json\/wp\/v2\/product_tag?post=20751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}