
Sirona® Simply Metal Control
Product Overview
What spa technicians reach for to deactivate dissolved metals without interfering with biguanide sanitizer systems.
Formulated by Sirona Spa Care in a 16 fl oz bottle, Simply Metal Control utilizes a tetrasodium EDTA chelating blend to sequester dissolved minerals before they stain spa surfaces or cloud the water. Unlike standard sequestering agents, this chlorine and bromine free formulation is engineered specifically for compatibility with biguanide sanitizing regimens. Adding 1 fl oz per 150 gallons keeps dissolved copper, iron, and manganese locked in suspension.
Customer Reviews
No reviews yet — bought this one? You'd be first.
Benefits & What Makes It Different
Biguanide System Compatible
Engineered specifically for non-chlorine and bromine free spas, working seamlessly with biguanide sanitizers without causing cloudiness or chemical fallout.
EDTA Chelation Chemistry
Deactivates dissolved iron, copper, and manganese to prevent waterline discoloration and surface staining across acrylic spa shells.
Concentrated 16 fl oz Bottle
Requires only 1 fluid ounce per 150 gallons of spa water, allowing standard hot tubs to be treated multiple times per bottle.
Product Details
Tetrasodium ethylenediaminetetraacetic acid (EDTA)
1 fl oz per 150 gallons of spa water
Compatibility
- Compatible with biguanide sanitizers
- Chlorine-free and bromine-free spa setups
- Safe for all spa and hot tub surfaces including acrylic and fiberglass
When To Use This
Pro Tip
Always add Simply Metal Control before balancing your pH or adding sanitizers during a fresh fill; sequestering heavy metals early prevents them from oxidizing and tinting the water green or brown.
Common Questions & Instructions
How do I dose Sirona Simply Metal Control in my hot tub?
Add 1 fluid ounce of Sirona Simply Metal Control for every 150 gallons of spa water directly into the water, then run your filtration system for at least 20 minutes to ensure thorough circulation.
Can I use Sirona Simply Metal Control in a bromine or chlorine hot tub?
While it is a chlorine and bromine free solution formulated especially for biguanide spas, EDTA-based metal controls effectively chelate minerals across various spa types without degrading water clarity.
When should I add metal control to my spa?
Add this treatment during your initial spa fill or refill, especially when using well water, and dose routinely during regular maintenance to prevent mineral staining and keep water clear.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



