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Spa Metal Prevent - Hot Tub Metal Stain Control
Spa Metal Prevent - Hot Tub Metal Stain Control
Spa Metal Prevent - Hot Tub Metal Stain Control
Spa Metal Prevent - Hot Tub Metal Stain Control

Spa Metal Prevent - Hot Tub Metal Stain Control

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Advanced Hot Tub Metal Control Chemical

Does your Spa have Brown or Green Water? It's likely from dissolved metals in your hot tub water. Buildup of metals like copper, iron, manganese, and other metals can stain your spa or hot tub. You need to get that metal out of your hot tub.

Don't let metal buildup in your hot tub. Eliminate metal before it starts and prevent metals from staining your spa or hot tub. Control the metal buildup be preventing iron & other metals from oxidizing to prevent metallic stains in your spa.

Our metal prevent chemical keeps metals from oxidizing to keep your spa water clean & reduce the chances of metal stains.

Get that metal off your hot tub & prevent it from coming back

Helps eliminate metal buildup & stains

  • Copper
  • Iron
  • Manganese
  • Other metallic deposits

Our Metal Prevent Chemical is Easy to Use

  1. Turn on the circulation pump and keep it running throughout using the metal control chemical.
  2. Add 1 pint (16oz) of product around the waterline for every 625 gallons of water.
  3. Circulate the spa water for 30 minutes. 

Trust in AquaDoc

You can trust that our pool and spa chemicals are held to the highest quality standards.

  • Proudly made in the USA
  • Advanced, Professional Grade formula
  • 100% Money Back Guarantee

Order with confidence

  • Satisfaction guaranteed! If our products don't solve your (spa related) headaches, contact us for a 100% refund. 
  • Free shipping on all orders! We're like you, we don't like shipping charges either - so we got rid of them.  

Frequently asked questions about our Anti-foam


Q: What if I'm still getting scum stains around my waterline?
A: Metal prevent is specifically formulated to prevent metal stains, but other particles are still able to 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 which requires stain & scale control formula.

    Q: Where is MAV AquaDoc's metal prevent made?
    A: Our spa metal prevent formula is proudly made, packaged, and shipped from the USA.

    Buy the AquaDoc Metal Control treatment Now

    Customer Reviews
    4.9 Based on 12 Reviews
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    Filter Reviews:
    Kristin L.
    United States United States

    Could see the difference in just a few uses.

    MAV Aqua Doc Spa Metal Prevent - Hot Tub Metal Stain Control Review
    United States United States
    Love it

    Was hesitant to use it but this truly cleaned the metal stains RIGHT off!! Very happy with the results and it came in less than a week!

    MAV Aqua Doc Spa Metal Prevent - Hot Tub Metal Stain Control Review
    United States United States
    Must have for Hot tubs

    I bought this for my older hot tub. It has been getting rust stains in the bottom and on the sides. I used this for a couple weeks and nothing has popped up its been great. I just add a little in and let it run for 30 minutes and its good to go!

    colleen w.
    United States United States
    an awesome product

    We noticed our hot tub was starting to get brown stains from our hard water and minerals in our water. The brown stains made our hot tub look so dirty. We just used this product according to directions, and it got rid of all the stains leaving our hot tub looking like new!

    United States United States
    Amazing Stuff

    This stuff is amazing. IT is really easy to use and works great in my hot tub. I can definitely see a difference in just a few uses.