{"id":34,"date":"2026-07-05T11:09:22","date_gmt":"2026-07-05T09:09:22","guid":{"rendered":"https:\/\/osmosiscostadelsol.com\/agua-marbella-dureza-cal\/"},"modified":"2026-07-05T11:11:51","modified_gmt":"2026-07-05T09:11:51","slug":"agua-marbella-dureza-cal","status":"publish","type":"post","link":"https:\/\/osmosiscostadelsol.com\/en\/agua-marbella-dureza-cal\/","title":{"rendered":"Marbella's water: hardness, limescale and what you can do"},"content":{"rendered":"<p>If you live in Marbella (or anywhere on the Costa del Sol), you'll have noticed three things about the water: the <strong>limescale<\/strong> on the shower screen and in the coffee machine, the <strong>taste<\/strong> that sometimes puts you off, and the <strong>white marks<\/strong> on the taps. It's not your house: it's the area's water. Let's look at why, and what can be done.<\/p>\n<h2>What Marbella's water is like<\/h2>\n<p>The water reaching most homes in Marbella and its surroundings (San Pedro, Nueva Andaluc\u00eda, Puerto Ban\u00fas, Estepona, Oj\u00e9n, Benahav\u00eds\u2026) is <strong>drinkable and safe<\/strong>. Pero, en t\u00e9rminos de calidad \u00absensorial\u00bb, tiene dos caracter\u00edsticas que la marcan:<\/p>\n<ul>\n<li><strong>High hardness<\/strong>: lots of dissolved calcium and magnesium. That's the origin of the limescale in pipes, boilers and taps.<\/li>\n<li><strong>Chlorine and sometimes an earthy taste<\/strong>: especially at times of year when disinfection is reinforced or the water source changes.<\/li>\n<\/ul>\n<p>In numbers, the <a href=\"\/en\/tds-agua-que-es\/\">TDS<\/a> usually sits between <strong>300 and 700 ppm<\/strong> (for comparison, low-mineralization bottled water is under 100 ppm).<\/p>\n<h2>What it does to your home<\/h2>\n<ul>\n<li><strong>Coffee machines and kettles<\/strong>: incrustaciones de cal en resistencias, calentado m\u00e1s lento, sabor a \u00abquemado\u00bb.<\/li>\n<li><strong>Shower and screen<\/strong>: persistent white marks, scale in the shower head.<\/li>\n<li><strong>Water heater and boiler<\/strong>: lose efficiency, use more energy, break down sooner.<\/li>\n<li><strong>Washing machine and dishwasher<\/strong>: shorter life, more detergent and softener used.<\/li>\n<li><strong>Taste when drinking<\/strong>: agua \u00abpesada\u00bb que a mucha gente no le entra bien y termina comprando garrafas.<\/li>\n<\/ul>\n<h2>What it does to your business<\/h2>\n<p>In Marbella's service sector, with thousands of bars, restaurants and hotels, the impact multiplies: coffee machines, ice makers, ovens, dishwashers and industrial laundries <strong>suffer far more<\/strong> with water this hard. There, <a href=\"\/en\/osmosis-inversa-hosteleria-empresas\/\">reverse osmosis for hospitality<\/a> stops being optional and becomes pure profitability.<\/p>\n<h2>Your options<\/h2>\n<ul>\n<li><strong>Just improve your drinking water<\/strong>: a <a href=\"\/en\/osmosis-inversa-domestica\/\">reverse osmosis<\/a> system under the sink. It gives you water free of limescale and chlorine for drinking and cooking.<\/li>\n<li><strong>Protect the whole installation from limescale<\/strong>: a <a href=\"\/en\/descalcificadores\/\">water softener<\/a> at the main water inlet.<\/li>\n<li><strong>Both, when the water is very hard<\/strong>: the usual choice in Marbella for homes going all the way. See <a href=\"\/en\/osmosis-vs-descalcificador\/\">osmosis vs water softener<\/a>.<\/li>\n<\/ul>\n<h2>How we start<\/h2>\n<p>The first step is always measuring <em>your<\/em> water. We come to your home or premises, run the <a href=\"\/en\/contacto\/\">free water test<\/a> and tell you what you need and what it costs. No obligation, no surprises.<\/p>\n<p>In Malaga city? Here's the same story applied to <a href=\"\/en\/osmosis-inversa-malaga\/\">Malaga's water<\/a>. Same substance, different nuance.<\/p>","protected":false},"excerpt":{"rendered":"<p>Marbella's water is drinkable but very hard, with a hint of chlorine. We explain what it does to your home and business, and which solutions actually improve it.<\/p>","protected":false},"author":1,"featured_media":36,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-34","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/posts\/34","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/comments?post=34"}],"version-history":[{"count":1,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/posts\/34\/revisions"}],"predecessor-version":[{"id":35,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/posts\/34\/revisions\/35"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/media\/36"}],"wp:attachment":[{"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/media?parent=34"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/categories?post=34"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/osmosiscostadelsol.com\/en\/wp-json\/wp\/v2\/tags?post=34"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}