{"id":23152,"date":"2026-08-10T17:20:07","date_gmt":"2026-08-10T10:20:07","guid":{"rendered":"https:\/\/www.poolspa.co.th\/?p=23152"},"modified":"2026-08-10T19:50:01","modified_gmt":"2026-08-10T12:50:01","slug":"mineral-pool-vs-freshwater-pool","status":"publish","type":"post","link":"https:\/\/www.poolspa.co.th\/en\/knowledge\/mineral-pool-vs-freshwater-pool\/","title":{"rendered":"Mineral Pool vs Freshwater Pool in Thailand: The Complete Guide"},"content":{"rendered":"<p>When the conversation turns to pools that feel comfortable on the skin, many people are familiar with the term <strong>\u201cmineral pool\u201d<\/strong> and assume it is a chlorine-free system. In reality, mineral pools and freshwater pools are water treatment systems that work on distinctly different principles.<\/p>\n<p>A mineral pool uses minerals such as magnesium and potassium together with electrolysis to generate chlorine for sanitising the water. So while the water feels softer and more comfortable than an ordinary saltwater system, <strong>chlorine remains central to how the system disinfects.<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.poolspa.co.th\/en\/featured\/nakedpools\/\"><strong>NAKED Freshwater Pool System<\/strong><\/a> takes a different approach, using <strong>copper and silver ionisation (Cu\/Ag)<\/strong> together with micro-oxidation to control algae and micro-organisms. This allows water quality to be maintained using only a very low level of chlorine.<\/p>\n<p>This is the key distinction between the terms <strong>\u201cMineral Pool\u201d<\/strong> and <strong>\u201cTrue Freshwater Pool\u201d<\/strong>.<\/p>\n<h2>What is a Mineral Pool?<\/h2>\n<p>The mineral pool is an evolution of the salt chlorinator, replacing sodium chloride as the primary salt with mineral salts such as <strong>magnesium chloride<\/strong> and <strong>Potassium chloride.<\/strong><\/p>\n<p>As water passes through the electrolysis cell, the system converts these mineral salts to produce chlorine that sanitises the pool.<\/p>\n<p>The benefit users notice is water that feels silkier, and magnesium also helps bind fine particles together so the filtration system removes dirt more effectively.<\/p>\n<p>What pool owners should understand,<\/p>\n<p><strong>however, is this: a mineral pool is still a chlorine-based sanitising system. It simply changes the type of salt used and adds the properties of minerals on top.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-23154 size-full\" src=\"https:\/\/poolspa.assets-twst.com\/2026\/08\/poolwater-vs-freshwater.jpg\" alt=\"\" width=\"1200\" height=\"1500\" \/><\/p>\n<h2>What Is a True Freshwater Pool System?<\/h2>\n<p>A true freshwater pool \u2014 the standard set by the NAKED Freshwater System \u2014 does not rely on a high mineral load to generate chlorine. It uses <strong>copper and silver ionisation instead.<\/strong><\/p>\n<p>Copper ions control algae growth, silver ions control bacteria, and micro-oxidation supports the overall water-quality process.<\/p>\n<p>The clearest difference is in Total Dissolved Solids (TDS).<\/p>\n<p>The NAKED Freshwater System operates at approximately <strong>800\u20131,000 ppm TDS<\/strong>, against roughly 3,000\u20136,000 ppm for a mineral pool \u2014 around a quarter of the salinity, while delivering markedly better water quality.<\/p>\n<p>A lower TDS level matters for pools, and especially in Thailand, because it reduces the salt and mineral load accumulating in the system \u2014 one of the factors associated with corrosion of equipment and materials around the pool.<\/p>\n<h3>NAKED Freshwater Pool vs Mineral Pool Comparison<\/h3>\n<table style=\"height: 116px; width: 100%; border-collapse: collapse; border-color: #dddddd; border-style: solid;\" border=\"1\" cellpadding=\"20\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th style=\"padding-left: 8px;\">Feature<\/th>\n<th>NAKED Freshwater Pool<\/th>\n<th>Mineral Pool<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Sanitisation method<\/strong><\/td>\n<td>Copper &amp; Silver Ionisation<\/td>\n<td>Converts mineral salts to chlorine via electrolysis<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Chlorine<\/strong><\/td>\n<td>Used at a very low level<\/td>\n<td>Chlorine remains the primary sanitiser<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>TDS<\/strong><\/td>\n<td>Approx. 800\u20131,000 ppm<\/td>\n<td>Approx. 3,000\u20136,000 ppm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Salt &amp; mineral content<\/strong><\/td>\n<td>Low<\/td>\n<td>Higher<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Water feel<\/strong><\/td>\n<td>Light and clean, with no salty sensation<\/td>\n<td>Silky and smooth, from magnesium<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Skin &amp; eyes<\/strong><\/td>\n<td>Less exposure to chlorine and chloramines<\/td>\n<td>More comfortable than ordinary chlorine, but chlorine is still present<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Corrosion risk<\/strong><\/td>\n<td>Lower, due to low TDS<\/td>\n<td>Salt and mineral accumulation needs to be taken into account<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Mineral replenishment<\/strong><\/td>\n<td>No regular magnesium top-ups<\/td>\n<td>Mineral salt levels must be maintained<\/td>\n<\/tr>\n<tr>\n<td style=\"padding-left: 8px;\"><strong>Best suited to<\/strong><\/td>\n<td>Owners wanting a low-chlorine, low-TDS pool<\/td>\n<td>Owners who prefer the feel of mineral water<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e40\u0e1b\u0e23\u0e35\u0e22\u0e1a\u0e40\u0e17\u0e35\u0e22\u0e1a\u0e43\u0e19\u0e40\u0e2d\u0e01\u0e2a\u0e32\u0e23\u0e15\u0e49\u0e19\u0e09\u0e1a\u0e31\u0e1a\u0e23\u0e30\u0e1a\u0e38\u0e2b\u0e25\u0e31\u0e01\u0e01\u0e32\u0e23\u0e41\u0e25\u0e30\u0e0a\u0e48\u0e27\u0e07\u0e04\u0e48\u0e32\u0e02\u0e2d\u0e07\u0e17\u0e31\u0e49\u0e07\u0e2a\u0e2d\u0e07\u0e23\u0e30\u0e1a\u0e1a\u0e44\u0e27\u0e49\u0e43\u0e19\u0e17\u0e34\u0e28\u0e17\u0e32\u0e07\u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19<\/p>\n<h2>Why TDS Matters for Pools in Thailand<\/h2>\n<p>Thailand is hot for most of the year, so pool water evaporates considerably.<\/p>\n<p>When water evaporates, <strong>salts and minerals do not evaporate with it<\/strong> \u2014 they stay behind and accumulate in the pool. As fresh water is topped up again and again, TDS levels tend to climb.<\/p>\n<p>For pools with stainless steel, a heat pump, an automatic pool cover, underwater lighting, natural stone and premium finishes, controlling water quality and dissolved-solids levels matters directly to the long-term service life of the system.<\/p>\n<p>This is one reason <strong>a low-TDS freshwater system<\/strong> is particularly interesting for private homes, pool villas, hotels and resorts in Thailand.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-23139\" src=\"https:\/\/poolspa.assets-twst.com\/2026\/07\/poolspa-freshwater-pool-mineral-pool-5.png\" alt=\"\" width=\"1200\" height=\"774\" \/><\/p>\n<h2>So Which System Is Better?<\/h2>\n<p>The answer is not simply \u201cwhich system is best\u201d, but which system best suits the pool owner&#8217;s needs. <strong>but which system best suits the pool owner&#8217;s needs.<\/strong><\/p>\n<p><strong>The mineral pool<\/strong> is a genuine improvement on the ordinary saltwater system. It gives softer water thanks to magnesium, and it remains a good option for anyone who appreciates the properties of mineral water.<\/p>\n<p>But if the goal is to <strong>reduce chlorine use, lower salt and TDS levels in the water, limit the impact on equipment, and get as close as possible to the feel of fresh water<\/strong>, the NAKED Freshwater System is a compelling technology for the modern pool \u2014 particularly premium and luxury pools in locations such as Phuket, Samui, Hua Hin and Bangkok.<\/p>\n<h2>\ud83d\udca7 NAKED Freshwater Pool \u2014 A Different Kind of Water<\/h2>\n<p>What many pool owners are looking for today is not simply \u201cclear water\u201d, but the quality of the water they feel every time they swim. <strong>but the quality of the water they feel every time they swim.<\/strong><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Water that is comfortable on skin and eyes<\/li>\n<li>Low chlorine<\/li>\n<li>Low TDS<\/li>\n<li>Less burden from accumulated salts and minerals<\/li>\n<li>And protection for pool equipment over the long term<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>This is the thinking behind <strong>the NAKED Freshwater Pool System.<\/strong><\/p>\n<p><strong>Because a good pool should not only look good on the day it is finished \u2014 it should deliver good water and remain properly maintainable throughout its service life.<\/strong><br \/>\n<strong>POOL&amp;SPA \u2014 Thailand\u2019s Pool &amp; Wellness Specialist Since 1972<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Building a swimming pool today is no longer just about design or aesthetics; the water quality system is the heart of it all, directly impacting user health, equipment lifespan, and long-term costs. Especially in a country like Thailand with hot weather and year-round sunshine, choosing the right water system is something that should never be overlooked.<\/p>\n","protected":false},"author":1,"featured_media":23138,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[516],"tags":[631,692,693],"class_list":["post-23152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-nakedpool-en","tag--en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mineral Pool vs Freshwater Pool in Thailand: The Complete Guide - POOL&amp;SPA \u0e1e\u0e39\u0e25\u0e41\u0e2d\u0e19\u0e14\u0e4c\u0e2a\u0e1b\u0e32<\/title>\n<meta name=\"description\" content=\"Building a swimming pool today is no longer just about design or aesthetics; the water quality system is the heart of it all, directly impacting user health, equipment lifespan, and long-term costs. 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