{"id":254298,"date":"2026-01-30T13:39:29","date_gmt":"2026-01-30T12:39:29","guid":{"rendered":"https:\/\/mooiwater.nl\/product\/waterhardheid-testset\/"},"modified":"2026-09-21T13:51:51","modified_gmt":"2026-09-21T11:51:51","slug":"water-hardness-test-kit","status":"publish","type":"product","link":"https:\/\/mooiwater.nl\/en\/online-shop\/water-hardness-test-kit\/","title":{"rendered":"Water hardness test kit"},"content":{"rendered":"<h2><span style=\"color: #00ccff;\"><strong>Water hardness test kit from Mooiwater<\/strong><\/span><\/h2>\n<ol>\n<li>Rinse the test tube with water<\/li>\n<li>Fill the test tube with water up to the 5ml mark<\/li>\n<li>Add 1 drop of test liquid and shake the tube. The water will then turn red or green. With the first drop, the colour is still a bit difficult to see<\/li>\n<li>Keep adding drops and shake after each drop. Do this until the colour changes from red to green. Red indicates hard water, green indicates soft water. The number of drops added indicates the hardness. So 6 drops = 6dH.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p><strong>Water hardness test kit<\/strong><\/p>\n<p>Would you like to know how much limescale is in your tap water? With this handy water hardness test kit, you can quickly and easily test the limescale levels in your tap water yourself. Simply pour some water into a test tube and add a few drops of the water hardness testing solution. Based on the number of drops, you can read off the water hardness level very precisely and reliably. Comes with easy-to-follow instructions.<\/p>\n<p>\u221a Easy to read<br \/>\n\u221a Simple instructions<br \/>\n\u221a Can be used more often<br \/>\n\u221a English user manual included<\/p>\n<p>&nbsp;<\/p>","protected":false},"featured_media":255029,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[82],"product_tag":[],"class_list":["post-254298","product","type-product","status-publish","has-post-thumbnail","product_cat-overig","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Handige waterhardheid testset | mooiwater<\/title>\n<meta name=\"description\" content=\"Met deze handige waterhardheid testset kan je snel en eenvoudig zelf de kalk in jouw leidingwater testen. De testset is meerdere keren te gebruiken.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mooiwater.nl\/en\/online-shop\/water-hardness-test-kit\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Handige waterhardheid testset | mooiwater\" \/>\n<meta property=\"og:description\" content=\"Met deze handige waterhardheid testset kan je snel en eenvoudig zelf de kalk in jouw leidingwater testen. De testset is meerdere keren te gebruiken.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mooiwater.nl\/en\/online-shop\/water-hardness-test-kit\/\" \/>\n<meta property=\"og:site_name\" content=\"Mooiwater.\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-21T11:51:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mooiwater.nl\/wp-content\/uploads\/2026\/04\/testset.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"853\" \/>\n\t<meta property=\"og:image:height\" content=\"969\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/mooiwater.nl\\\/webshop\\\/waterhardheid-testset\\\/\",\"url\":\"https:\\\/\\\/mooiwater.nl\\\/webshop\\\/waterhardheid-testset\\\/\",\"name\":\"Handige waterhardheid testset | mooiwater\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/mooiwater.nl\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/mooiwater.nl\\\/webshop\\\/waterhardheid-testset\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/mooiwater.nl\\\/webshop\\\/waterhardheid-testset\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/mooiwater.nl\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/testset.jpg\",\"datePublished\":\"2026-01-30T12:39:29+00:00\",\"dateModified\":\"2026-09-21T11:51:51+00:00\",\"description\":\"Met deze handige waterhardheid testset kan je snel en eenvoudig zelf de kalk in jouw leidingwater testen. 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