Spa Metal Prevent
Spa Metal Prevent
Shield components from metal corrosion and staining, ensuring clear water and extended equipment lifespan.
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Our Spa Metal Prevent shields components from metal corrosion and staining, ensuring clear, pristine water. With an extended equipment lifespan, it safeguards your spa experience for lasting enjoyment.

Use this non-phosphorous product when filling or refilling your spa to prevent metal staining.
DIRECTIONS FOR USE
- Keep circulation pump running and add 16 oz. of this product around the spa waterline for each 625 gallons of spa water.
- Circulate the spa water for 30 minutes.

What if I'm still getting scum stains around my waterline?
Metal Prevent is specifically formulated to prevent metal stains, but other particles can still create stains around the waterline. Unfortunately, depending on your environment, metal may be just one of the stain control formulas needed. Limescale and calcium buildup is another common spa issue that requires stain & scale control formula.
Where is MAV AquaDoc's Metal Prevent made?
Our spa metal prevent formula is proudly made, packaged, and shipped from the USA.

The price you see is the price you pay.
We don’t play pricing games.
That’s why all orders over $75 ship free—no tricks, no hidden costs.
Why is AquaDoc the Best in Pool Chemicals?
- 🌿 Paraben free & Aluminum free
- 📦 Fast Shipping
- 🇺🇸 Made in the USA
Order With Confidence
If our products don't solve your (pool or spa-related) headaches, contact us for a 100% refund. Free shipping on all orders over $75!
Introducing Our Water Testing Game-Changer
AquaDoc
Eagle Ray Digital Water Testing Kit
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Say goodbye to guesswork with our easy-to-use tester that provides fast and accurate readings for: Total Chlorine, Total Hardness, Free Chlorine, Cyanuric Acid, Total Alkalinity, Bromine, and pH Levels.
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100% Paraben Free
Say goodbye to parabens that can potentially be harmful to your family. All of AquaDoc's chemicals are paraben and aluminum free.

















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Best Metal Preventitive on the Market
Everytime we change our hot tub water with water from our well, the water turns brown once we add chemicals from the high amounts of iron. Ive used other Metal products and nothing worked. This stuff though, is amazing. Water is crystal clear. First time in 2 years that I haven't had an issue wit my water turning brown after a fill!
Came on time
Worked as advertised, I have high iron content in my well water, this solved my problem in my hot tub, I tried different products, this worked the best. Will order more when i change the water.
Good product
I recommend this product.
Spa chemical
Worked great, fast delivery
Does the job
Helps my water after the water change.
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