This necessary fresh fill product prevents the collection of harmful minerals on the hot tub shell and parts.The water used to fill your spa may contain high amounts of metal that
can stain or discolor your spa's surface. The presence of minerals can
cause oxidizing and scaling on the shell's surface and erosion of the
heater element. Stain & Scale Control protects your spa from metal and
mineral impurities found in spa water by suspending and inhibiting stain
and scale causing minerals.
Initial Use: Add 16 oz. to spas up to 500 gallons of water while it is
being filled, before any sanitizer is added. Remove and clean cartridge
filter within 24 hours of dose with filter cleaner.
Maintenance Dose: When you add water to top-off your spa, you may
need to maintain your Stain & Scale Control levels. Add 1 oz. per 100
gallons of Stain & Scale Control to hot tub water while the pump is
running. Allow the water to recirculate overnight or until the water is
clear. This will help to control any mineral staining and will help to
protect the heating element from corrosion. If staining continues due to
excessive mineral levels in water, increase dosage.
Note: Draining and cleaning of spa or hot tub is recommended every 3