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Use Natural Chemistry's <span style=\"color: #888888;\">METALfree</span> and you have the ultimate 1-2 combination for stain fighting!</span><br /><br /><span style=\"font-size: medium; color: #000000;\">STAINfree is a citric acid product that removes metal staining on pool liners and finishes. STAINfree is ideal for treating staining on all pool surfaces and is compatible with all sanitizing systems. Use Natural Chemistry's METALfree and you have the ultimate 1-2 combination for stain fighting!</span> <div id=\"img\"><strong><span style=\"font-size: medium; color: #000000;\">Features:</span></strong></div> <div id=\"points\"> <ul style=\"list-style-type: disc;\"> <li><span style=\"font-size: medium; color: #000000;\">Safely removes metal stains from pool liners and finishes.</span></li> <li><span style=\"font-size: medium; color: #000000;\">Works great on steps</span></li> <li><span style=\"font-size: medium; color: #000000;\"><span>Does not create any residual phosphates in your pool water</span></span></li> <li><span style=\"font-size: medium; color: #000000;\"><span>All natural ascorbic acid based formula </span></span></li> <li><span style=\"color: #000000; font-size: medium;\">For use with vinyl and fiberglass pool surfaces 1.75 lb. bottle </span></li> </ul> <div><span style=\"font-size: medium; color: #000000;\"><strong>Recommended Dosage: </strong>One pound per 10,000 gallons</span> <span style=\"font-size: medium; color: #000000;\"><strong>IMPORTANT: Your chemical levels must be properly balanced before using Stain Free™</strong></span><br /><br /><span style=\"font-size: medium; color: #000000;\"><strong>Directions:</strong></span><br /><span style=\"font-size: medium; color: #000000;\">1. Add one pound (1LB/o.5kg) of Stainfree per 10,000 gallons (38,000L) of water. With the filtration system on, walk around the pool and sprinkle the product evenly on the surface.</span><br /><span style=\"font-size: medium; color: #000000;\">2. One hour later, add METALfree on the surface.</span><br /><span style=\"font-size: medium; color: #000000;\">3. 24 hours later, test pool water and balance water chemistry if necessary. </span><span style=\"color: #888888; font-size: medium;\"><span>See more at -  http://www.intheswim.com/p/stain-free#sthash.kqmhMQA9.dpuf</span><br /></span></div> <div><iframe src=\"https://www.youtube.com/embed/Fr989g-AdmI\" width=\"470\" height=\"353\" frameborder=\"0\" allowfullscreen=\"\"></iframe></div> </div>","sku":"109013","search_keywords":"","page_title":"Natural Chemistry STAINfree Stain Remover 1.75kg","price":44.99,"sale_price":39.99,"date_modified":"2026-04-20T19:03:41+00:00","height":0,"weight":0,"depth":0,"width":0,"variants":[{"sale_price":39.99,"price":44.99,"sku":"109013","inventory_level":0,"is_free_shipping":false,"id":"520","product_id":539,"upc":"","weight":0,"width":0,"purchasing_disabled":false,"option_values":[]}],"custom_url":{"url":"/natural-chemistry-stainfree-stain-remover-175kg/"},"custom_fields":[],"images":[{"is_thumbnail":true,"url_standard":"https://cdn11.bigcommerce.com/s-mo9umo7b4l/products/539/images/3397/NATURAL_CHEMISTRY_STAINFREE_STAIN_REMOVER__42669.1776711822.386.513.jpg?c=1","url_thumbnail":"https://cdn11.bigcommerce.com/s-mo9umo7b4l/products/539/images/3397/NATURAL_CHEMISTRY_STAINFREE_STAIN_REMOVER__42669.1776711822.220.290.jpg?c=1","url_zoom":"https://cdn11.bigcommerce.com/s-mo9umo7b4l/products/539/images/3397/NATURAL_CHEMISTRY_STAINFREE_STAIN_REMOVER__42669.1776711822.1280.1280.jpg?c=1","url_tiny":"https://cdn11.bigcommerce.com/s-mo9umo7b4l/products/539/images/3397/NATURAL_CHEMISTRY_STAINFREE_STAIN_REMOVER__42669.1776711822.44.58.jpg?c=1","image_file":"a/317/NATURAL_CHEMISTRY_STAINFREE_STAIN_REMOVER__42669.jpg","description":"Natural Chemistry STAINfree 1.75kg","sort_order":1,"id":3397}],"inventory_level":0,"inventory_tracking":"product","is_free_shipping":false,"related_products":[-1],"reviews_count":0,"reviews_rating_sum":0,"reviews":[],"sort_order":0,"availability":"available","bigcommerce_id":539,"brand_id":0,"cf":[],"warranty":""},"categories":{"edges":[{"node":{"id":"575072e6-36c4-599f-8e07-fd107c476398","name":"Chemicals","bigcommerce_id":84,"custom_url":{"url":"/chemicals/"}}},{"node":{"id":"57d7b885-0af8-55b0-8a73-f04e1e05ff90","name":"Stain & Scale","bigcommerce_id":86,"custom_url":{"url":"/chemicals/pool-chemicals/stain-scale/"}}}]},"storyBlok":{"id":"storyblokentry-159097094461464-default","name":"Natural Chemistry STAINfree Stain Remover 1.75kg","content":"{\"qa\":[],\"sku\":\"109013\",\"_uid\":\"4f8e9aa6-1240-49d2-b06c-61e929b460ac\",\"name\":\"Natural Chemistry STAINfree Stain Remover 1.75kg\",\"price\":\"\",\"title\":\"Natural Chemistry STAINfree Stain Remover 1.75kg\",\"images\":[],\"reviews\":[],\"teasers\":[],\"features\":[],\"packages\":\"\",\"services\":\"\",\"warranty\":{\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\"}]},\"component\":\"Product\",\"highlights\":{\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\"}]},\"meta_title\":\"\",\"description\":{\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"STAINfree is a citric acid product that removes metal staining on pool liners and finishes. STAINfree is ideal for treating staining on all pool surfaces and is compatible with all sanitizing systems. 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Use Natural Chemistry's METALfree and you have the ultimate 1-2 combination for stain fighting!STAINfree is a citric acid product that removes metal staining on pool liners and finishes. STAINfree is ideal for treating staining on all pool surfaces and is compatible with all sanitizing systems. Use Natural Chemistry's METALfree and you have the ultimate 1-2 combination for stain fighting! Features:   Safely removes metal stains from pool liners and finishes. Works great on steps Does not create any residual phosphates in your pool water All natural ascorbic acid based formula  For use with vinyl and fiberglass pool surfaces 1.75 lb. bottle   Recommended Dosage: One pound per 10,000 gallons IMPORTANT: Your chemical levels must be properly balanced before using Stain Free™Directions:1. Add one pound (1LB/o.5kg) of Stainfree per 10,000 gallons (38,000L) of water. With the filtration system on, walk around the pool and sprinkle the product evenly on the surface.2. One hour later, add METALfree on the surface.3. 24 hours later, test pool water and balance water chemistry if necessary. See more at -  http://www.intheswim.com/p/stain-free#sthash.kqmhMQA9.dpuf  ","canonicalURL":""},"breadcrumb":{"location":"/natural-chemistry-stainfree-stain-remover-175kg/","crumbs":[{"pathname":"/","crumbLabel":"Home"},{"pathname":"/natural-chemistry-stainfree-stain-remover-175kg/","crumbLabel":"natural-chemistry-stainfree-stain-remover-175kg"}]}}},"staticQueryHashes":["206784472","2576184863","3128451518","3926708798","4144023764"]}