Natural Chemistry Spa Stain and Scale Free

Protect your spa from scale build-up and stains with Spa Stain & Scale, a reliable product for combating excessive minerals without harmful phosphates or acids. Ideal for salt generator cells, it enhances spa performance.

Product Description

Spa Stain & Scale protects your spa from the damaging effects of scale build-up and staining due to excessive calcium, iron, copper and other minerals. It works without the use of phosphates or harsh acids. Spa Stain & Scale assists in preventing scale from forming on salt generator cells, to help maintain optimum performance.


Cationic polymers used in many clarifiers, flocculants and polyquat algaecides should not be dosed to swimming pool water at the same time as metal control products. Cloudy water, precipitation and reduced product effectiveness may result. Wait 24 hours between additions.

Do not exceed recommended dose.

Do not use with biguanides.


Initial Treatment of Fresh Fill: Add 8oz per 200 gallons directly to spa water.
Weekly Maintenance: Add 1 oz per 200 gallons directly to spa water.
Note: If water hardness level is above 400ppm, double the weekly maintenance dosage.