Sirona Calcium Booster
Product Overview
Low calcium hardness leads to equipment corrosion and excessive foaming, making this liquid booster a proven choice for stabilizing spa water chemistry.
Sirona Calcium Booster is a concentrated liquid Calcium Chloride solution designed to rapidly increase hardness levels in spas and hot tubs. Unlike granular alternatives that can leave residue or take time to dissolve, this 1 LB formula integrates immediately to protect heaters and seals from the aggressive nature of soft water. It is a standard specification for maintaining the ideal range of 200-400 ppm, ensuring your equipment longevity and water clarity.
Benefits & What Makes It Different
Equipment Protection
Prevents soft water from leaching minerals from metal components, protecting your heater and pump from premature corrosion.
Foam Suppression
Low calcium levels often contribute to persistent foaming; increasing hardness helps stabilize the water surface for a cleaner soak.
Universal Compatibility
This formula reliably handles water treated with bromine, chlorine, salt water, ozone, minerals, or biguanide without clouding.
Product Details
Calcium Chloride 35% (Liquid Solution)
1 fl oz per 500 gallons to raise hardness 10 ppm; approximately one 1 LB bottle per 10,000 gallons to raise 8 ppm.
Compatibility
- Compatible with bromine, chlorine, and biguanide
- Safe for salt water and ozone systems
When To Use This
Pro Tip
In regions with naturally soft water, like the Pacific Northwest, checking calcium levels weekly is vital because soft water will aggressively seek minerals by eating away at your spa's internal metal parts.
Common Questions & Instructions
How much Sirona Calcium Booster do I need to raise my hardness level?
To raise calcium hardness by 10 ppm in a 500-gallon spa, add 1 fluid ounce of this liquid booster. Always test your water first to ensure you stay within the 200-400 ppm range.
Can I use this calcium booster in a salt water hot tub?
Yes, this product is fully compatible with salt water systems, as well as bromine and chlorine, helping to protect the salt cell from the corrosive effects of low calcium.
How soon can I use my spa after adding the booster?
You should run the spa's circulation on high speed for at least 15 minutes after application to ensure even distribution before getting in.
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.
