Hot Tub Things® Metal Out – Spa & Hot Tub Stain & Scale Preventer
Transform your spa experience with crystal-clear, stain-free water. Hot Tub Things® Metal Out is your solution to preventing unsightly stains and scale buildup caused by metals and minerals in your hot tub or spa water.
Hot Tub Things® Metal Out is a professional-grade sequestering agent specifically formulated to prevent stains and scale formation in spas and hot tubs. This powerful 16 fl oz treatment removes iron, copper, manganese, and other dissolved metals that cause discoloration and buildup on spa surfaces and equipment. Whether you're filling your spa with well water or municipal water, Metal Out protects your investment by keeping water clear and surfaces pristine.
Frequently Asked Questions
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Add 2-4 oz per 500 gallons when initially filling your spa. For ongoing maintenance, add 2 oz monthly. If you have well water or notice staining, use weekly until water clears.
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Yes! Works with all sanitizer types including chlorine, bromine, saltwater systems, and mineral sanitizers without interference.
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Metal Out prevents stains. For existing stains, use with Hot Tub Things® Stain & Scale Remover first, then maintain with Metal Out.
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While formulated for spas, it can be used in small pools. Multiple bottles needed for larger pools.
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Look for green, brown, or rust stains on surfaces, cloudy water after filling, or if you use well water. Metal test strips can confirm presence of iron and copper.
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Yes, safe for all spa surfaces including acrylic, fiberglass, vinyl, and plaster.
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