Sirona® Simply Waterline Control
Product Overview
Step 1 of the biguanide routine to reliably prevent waterline scum lines without chlorine or bromine.
Packaged in a convenient 1 Quart bottle, Sirona Simply Waterline Control uses specialized quaternary amine compounds to stop organic ring formation at the water line. Designed specifically for chlorine-free and bromine-free spas, this step-one formula protects acrylic surfaces and maintains clean spa walls when used alongside Sirona Simply Oxidizer and Sanitizer.
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Benefits & What Makes It Different
Chlorine & Bromine Free
Engineered specifically for biguanide spa systems, preventing waterline deposits without relying on standard chlorine or bromine sanitizers.
Targeted Scum Prevention
Binds and controls organic residues, oils, and minerals before they adhere to hot tub acrylic surfaces and plumbing.
Simple Dosing Protocol
Requires only 1.5 fl oz per 150 gallons at startup and 0.75 fl oz weekly to maintain clean walls throughout the drain-and-refill cycle.
Product Details
Bis (hydrogenated tallow alkyl) dimethyl quaternary chlorides, Bis (hydrogenated alkyl methyl amines) hydrochloride
Startup: 1.5 fl oz per 150 gallons; Weekly maintenance: 0.75 fl oz per 150 gallons
Compatibility
- Compatible with all biguanide spa sanitation systems
- Not compatible with traditional chlorine or bromine sanitizers
When To Use This
Pro Tip
Always make sure the air blowers are turned off before pouring this product directly into the water so the liquid disperses across the surface rather than foaming into the air.
Common Questions & Instructions
How do I dose Sirona Simply Waterline Control in my hot tub?
With air blowers turned off, add 1.5 ounces for every 150 gallons of water at initial spa startup. For routine weekly maintenance, add 0.75 ounces per 150 gallons to keep the waterline clean.
Why did my spa water turn cloudy after adding Waterline Control?
When added to cold water during a fresh fill, this concentrated solution can cause temporary cloudiness. The water clears up quickly once heated to normal operating spa temperatures between 98°F and 104°F.
Can I use Sirona Simply Waterline Control with chlorine or bromine sanitizers?
No. This product is formulated specifically for biguanide systems and should not be mixed with standard chlorine or bromine systems. For best results follow the Sirona Simply Spa Care 3 step system.
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.
