Stain & Scale Control (1 qt)
Price
Controls Calcium Buildup & Metal Staining
Stain and Scale Control protects spas from the damaging effects of scale buildup and staining due to excessive calcium, iron, copper and other minerals.
It works without the use of phosphates or harsh acids.
Spa Stain and Scale also works to prevent scale from forming on salt generator cells to help maintain optimum performance.
Note: This product can be used with most sanitizing systems and is compatible with all spa surfaces. Do not use with biguanides.
Initial Treatment of Fresh Fill:
Add 8 fl oz per 200 gallons directly into spa or hot tub water
Small threaded cap is 1/2 fl oz and oversized cap is 4 fl oz.
Weekly Maintenance: Add 1 fl oz per 200 gallons directly into spa or hot tub water
Note: If water hardness level is above 400 ppm, double the weekly maintenance dose
For more information on Natural Chemistry Products, please watch this informational video.
PRODUCT FAQ'S
Yes, you should clean your filter after adding Phosfree and letting the system run continuously for 48 hours (while keeping an eye on filter pressure to ensure it doesn’t rise about 10 psi over start-up). You should also ensure that the filter is clean prior to starting a Phosfree treatment which will allow the product to work more efficiently.
While these products can assist in the stain removal process, they are also need to be used as maintenance treatments. Metals that cannot be fully removed through the filtration system (especially in sand and cartridge filters) are kept in suspension by Metal Free or Scale Free. Calcium molecules are deformed so they can’t stick together to form scale and other metals are kept in solution so they don’t settle back on a surface to cause recurrent staining.
Yes, vacuuming the pool surface thoroughly and cleaning the filter are two very important steps in the stain removal process that cannot be skipped. Cleaning the filter helps to remove some metals from the water. Others that cannot be removed are kept in suspension with maintenance products like Metal Free or Scale Free.
Yes, you can leave Spa Purge in longer than overnight. It needs a minimum of 6 hours for optimum performance so leaving it in longer is not a problem.
For liquids, the large overcap is 4oz and the small threaded cap is ½ an ounce
Phosphates come from a wide variety of sources, some of the most common being:
- Fertilizers (if you have a landscaping service, there is a good chance your pool will have issues with phosphates)
- Many stain & scale products that are sold in the swimming pool industry are phosphonic or phosphoric acid based-while these products do a great job at protecting from stain and scale, they also increase phosphate levels significantly. It is ideal to use a stain & scale control like Metal Free or Scale Free that does not contribute to unwanted phosphate contamination
- Dirt/Dust
- Rain
- Soaps (if one chooses to bathe in a pool, which we hope you do not, it will add phosphates to the water)
- Some cleaning products (ex: many tile cleaners will add to phosphate levels)
