{"product_id":"luma-premium-hardness-plus-1kg-swimming-pool-spa-water-balance","title":"Luma Premium Hardness Plus 1kg | Swimming Pool \u0026 Spa Water Balance","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eMaintain balanced water with Luma Premium Hardness Plus. Designed for swimming pools, hot tubs and spas, this calcium hardness increaser helps restore water balance, reducing the risk of damage caused by soft water while helping protect pool surfaces, heaters and equipment. Ideal for routine adjustments and ongoing water care.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eMaintaining the correct water balance is essential for protecting your pool or spa and keeping your water comfortable and enjoyable. When calcium hardness levels are too low, water can become aggressive, which may impact grout, finishes, heaters and metal components over time.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLuma Premium Hardness Plus has been carefully selected for pool owners and professionals looking for dependable water treatment and effective protection for their pool or spa investment.\u003c\/p\u003e\n\u003cp\u003eThis premium granular formula helps safely increase calcium hardness levels, bringing your water back into the recommended operating range. Used alongside accurate water testing and a consistent maintenance routine, it helps reduce the effects of corrosive water conditions while supporting the protection of pool surfaces and equipment. The 1kg pack is ideal for smaller adjustments, routine maintenance and targeted water balancing.\u003c\/p\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRaises calcium hardness levels\u003c\/li\u003e\n\u003cli\u003eHelps reduce aggressive water conditions\u003c\/li\u003e\n\u003cli\u003eSupports protection of pool finishes and equipment\u003c\/li\u003e\n\u003cli\u003eHelps maintain balanced water chemistry\u003c\/li\u003e\n\u003cli\u003eSuitable for swimming pools, spas and hot tubs\u003c\/li\u003e\n\u003cli\u003eIdeal for routine maintenance and corrective treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan lang=\"EN-US\"\u003eHow to Use\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-US\"\u003eMeasure calcium hardness before treatment. Add only as stated on the product label, allow full circulation and retest before making further adjustments.\u003c\/span\u003e\u003c\/p\u003e","brand":"Luma Pools LTD","offers":[{"title":"Default Title","offer_id":54504584020314,"sku":null,"price":12.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/8423\/8426\/files\/LUMA-HARDNESS-PLUS.jpg?v=1785940835","url":"https:\/\/lumapools.co.uk\/products\/luma-premium-hardness-plus-1kg-swimming-pool-spa-water-balance","provider":"Luma Pools LTD","version":"1.0","type":"link"}