{"product_id":"5lb-stain-drop-no-2","title":"Stain Drop No.2 Copper and Scale Stain Remover, 5 lb","description":"\u003cp\u003eStain Drop No.2 is a 5 lb stain treatment for removing copper staining and scale from pool surfaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKnow the stain before you treat it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eStain Drop is sold as a numbered range because copper, iron and other stains do not respond to the same chemistry. A blue green or dark blotchy stain on plaster can be copper, and it can also be something else entirely. A stain identification kit takes a few minutes and tells you which product to reach for, which is cheaper than working through the range one container at a time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBalance first, treat second\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eStain treatment works on balanced water. If the chemistry that put the metal on the wall is still running, the stain comes back within weeks. Get pH, alkalinity and calcium in range and deal with what is introducing the copper, whether that is a heat exchanger, an ionizer or a copper based algaecide, then run the treatment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDosing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUse the dose rates on the container label. They are set by pool volume and by how heavy the staining is, and the label also covers circulation, filter handling and any hold on the chlorine level while the product works.\u003c\/p\u003e","brand":"Stain Drop","offers":[{"title":"Default Title","offer_id":48628960985300,"sku":"HAV-50-5101","price":60.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4ad7afe3-4d34-4c3a-9f07-791f6e0dd594.jpg?v=1788758494","url":"https:\/\/www.activepoolsupply.com\/products\/5lb-stain-drop-no-2","provider":"Active Pool Supply","version":"1.0","type":"link"}