As an Amazon Associate I earn from qualifying purchases.


Remove calcium, Copper, and any other metal deposits to keep alkalinity down. Spa calcium decreaser: our hot tub chemicals are your first line of spa defense against calcium. Our 100% top quality spa descaler works hard to remove metal of all types. Compatible with bromine & chlorine: our spa stain and scale preventer is compatible with both Bromine & Chlorine sanitized spas.
Made in the usa: enjoy your leisure time while spa chemicals stain and scale that Defends your hot tub against stain, professional grade formula - leaving your spa, or pool with clear, scale and metals with the best spa products that are proudly made in the USA. Quick dissolving hot tub water softener: aqua doc delivers professional Grade spa defense for hard water prevention. Prevent stain and scale for hot tubs with our advanced, hot tub, blue water. Decrease spa water hardness and reduce stains often created by high spa calcium levels.






1. SpaGuard
#ad
Quart, SpaGuard Spa Stain/Scale Control
#adSpaGuard #ad - Spaguard spa stain & Scale Control - 1 Quart. Removes some scale buildup on spa surface. Simply add this powerful liquid formula weekly to safeguard your spa or hot tub from these threats.More information #ad
Color of the liquid is natural brown. Removes relatively fresh metal stains from spa surfaces. Prevents scale formation and cloudy water due to high calcium levels.Brand | SpaGuard #ad |
Manufacturer | BioLab #ad |
Height | 2 Inches |
Length | 6 Inches |
Weight | 2 Pounds |
Width | 2 Inches |
Part Number | BIO42356 |
Model | BIO42356 |
Warranty | Returns are not accepted on opened or used products and subject to a 20% restocking fee. |
More information #ad
2. SpaGuard
#ad
SpaGuard Spa Stain/Scale Control, Pint
#adSpaGuard #ad - Prevents scale formation and cloudy water due to high calcium levels. Removes relatively fresh metal stains from spa surfaces. Removes some scale buildup on spa surface.More information #ad
Brand | SpaGuard #ad |
Manufacturer | SpaGuard #ad |
Part Number | 42358BIO |
Model | BIO42358 |
Warranty | Returns are not accepted on opened or used product and are subject to a 20% restocking fee. |
More information #ad
3. MAV AquaDoc
#ad
Spa Stain and Scale Control for Hot Tubs, Scale Metal & Stain Control for Hot Tubs, Prevent & Remove Stains in Hot Tubs with Our Hot Tub Water Softener & Spa Descaler Chemical | AquaDoc 32oz
#adMAV AquaDoc #ad - Spa stain and scale control for hot tubs: control stain and scale deposits with our Professional Grade Spa scale, metal, and stain control product. Reduce alkalinity levels with spa stain & scale. Spend your leisure time enjoying your hot tub instead of worrying about chalky build-up on spa equipment and surfaces.Remove calcium, Copper, and any other metal deposits to keep alkalinity down. Spa calcium decreaser: our hot tub chemicals are your first line of spa defense against calcium. Our 100% top quality spa descaler works hard to remove metal of all types. Compatible with bromine & chlorine: our spa stain and scale preventer is compatible with both Bromine & Chlorine sanitized spas.
More information #ad
Get metal out of your hot tub, Iron, spa or pool water to avoid stains. Using our hard water softener for spas is your best defense against metal and scale buildup in your water. Made in the usa: enjoy your leisure time while spa chemicals stain and scale that Defends your hot tub against stain, professional grade formula - leaving your spa, or pool with clear, scale and metals with the best spa products that are proudly made in the USA. Quick dissolving hot tub water softener: aqua doc delivers professional Grade spa defense for hard water prevention. Prevent stain and scale for hot tubs with our advanced, hot tub, blue water. Decrease spa water hardness and reduce stains often created by high spa calcium levels.
Brand | MAV AquaDoc #ad |
Manufacturer | MAV AquaDoc #ad |
Weight | 2 Pounds |
More information #ad
4. SpaGuard
#ad
SpaGuard Stain and Scale Control 1 pt 3 Pack
#adSpaGuard #ad - Prevent stains caused by iron, copper and manganese. Spaguard stain and Scale Control 1 Pint 3 Pack. Bonds to troublesome metal ions in your spa water to filter it out.More information #ad
Brand | SpaGuard #ad |
Manufacturer | SpaGuard #ad |
Weight | 3.4 Pounds |
Part Number | 42358BIOx3 |
Model | 42358BIO |
More information #ad
5. Hot Tub Things
#ad
Prevents Discoloration and Staining of Spa Surface, Hot Tub Things Stain and Scale Control 32 Ounce
#adHot Tub Things #ad - Formulated exclusively for Hot Tubs And Made from the Purest Chemicals Available. This necessary fresh fill product prevents the collection of harmful minerals on the hot tub shell and parts! America's #1 trusted Brand of Hot Tub Chemicals.More information #ad
Safety tested to Assure Quality, Guaranteed Performance. Compare to Leisure Time Control.Brand | Hot Tub Things #ad |
Manufacturer | Hot Tub Things #ad |
Height | 9 Inches |
Length | 3 Inches |
Weight | 2.1 Pounds |
Width | 3 Inches |
Part Number | 850511004291 |
More information #ad
6. Spa Essentials
#ad
1-Pint, Spa Essentials 28304000 Stain and Scale Control for Spas and Hot Tubs
#adSpa Essentials #ad - No assembly Required. Prevents scale formation From Excess Calcium In Water. Prevents stains from Dissolved Metals Including Iron, Copper And Manganese. Liquid Formula.More information #ad
Brand | Spa Essentials #ad |
Manufacturer | Robelle Industries #ad |
Height | 8 Inches |
Length | 3 Inches |
Weight | 1 Pounds |
Width | 3 Inches |
Part Number | 28304000 |
Model | 28304000 |
Warranty | Returns are not accepted on opened or used products and are subject to a 20% restocking fee |
More information #ad
7. Orenda
#ad
Orenda SC1000 SC-1000 Scale and Metal Control Swimming Pool Chemical, Clear
#adOrenda #ad - Contains no phosphates. Chelates metals and calcium to prevent oxidation and scale. Gently removes stains and scale without acid. Nsf-50 certified. Protects surfaces of start-up pools while plaster is curing.More information #ad
Brand | Orenda #ad |
Manufacturer | Orenda #ad |
Height | 9 Inches |
Length | 4.25 Inches |
Weight | 1 Pounds |
Width | 2.25 Inches |
Part Number | SC-1,000 |
Model | SC1000 |
More information #ad
8. Natural Chemistry
#ad
33.9 Ounces, Natural Chemistry Spa/Hot Tub Surface Stain and Scale Prevention Control Formula Solution
#adNatural Chemistry #ad - Do not use: Do not use with biguanides. Control: controls metal staining due to excessive calcium, iron, copper, and other minerals. Natural formula: Formulated without the use of phosphates or harsh acids.More information #ad
Prevention: prevents scale from forming on salt generator cells to help maintain optimum performance. Protection: protects hot tubs and spas from the damaging effects of scale build up.Brand | Natural Chemistry #ad |
Manufacturer | Natural Chemistry - Pool #ad |
Height | 1 Inches |
Length | 1 Inches |
Weight | 2.12 Pounds |
Width | 1 Inches |
Part Number | 4222 |
Model | 4222 |
More information #ad
9. Natural Chemistry
#ad
Natural Chemistry Pro Series Stain & Scale Control 1 gal 2 Pack
#adNatural Chemistry #ad - Works with most sanitizing systems except biguanides. Targets calcium, iron, copper, and other minerals. 2 pack. Professional stain and scale remover.More information #ad
Brand | Natural Chemistry #ad |
Manufacturer | Natural Chemistry #ad |
More information #ad