HTH Stain Lift & Prevent 1kg

The HTH Stain Lift & Prevent 1kg is a specialised two-step pool treatment kit designed to eliminate localised metallic stains and prevent their recurrence.

The system includes one pouch for lifting iron and copper deposits from pool linings and a second pouch to catch dissolved metals, ensuring they do not re-deposit on surfaces during water rebalancing.

Product Specifications and Features

• • Dual-Pouch System: Contains one Stain Lift pouch and one Stain Prevent pouch, providing a sequential chemical process that first releases metal bonds and then locks them in solution.
• • Metal Target Profile: Specifically formulated to neutralise iron and copper stains, which are common in pools using borehole water or where low pH has caused equipment corrosion.
• • Surface Compatibility: Safe for use on marbelite, fibreglass, and vinyl linings, though it is not recommended for black or very dark-coloured plaster finishes.
• • Concentrated Treatment: A single 1kg kit is sufficient to treat up to 50,000 litres of pool water, making it a cost-effective alternative to a full drain and acid wash.
• • Chelating Action: The "Prevent" stage uses sequestering agents that wrap around metal ions, preventing them from reacting with chlorine and forming new stains.
• • Fast-Acting Results: Noticeable lifting of surface stains can often be observed within 3 to 4 hours of localised application, provided the water is correctly pre-balanced.

Ideal Use Cases

• • Borehole Water Pools: Essential for South African homes that top up pools with borehole water, which typically has a high concentration of dissolved minerals and metals.
• • Post-Corrosion Recovery: Ideal for restoring pool aesthetics after a period of low pH or low alkalinity has caused copper leaching from heater elements or pipework.
• • Localised "Spot" Cleaning: Can be applied directly to stubborn brownish or greenish marks on steps and floor areas to lift concentrated metallic blemishes.
• • Pre-Season Preparation: A proactive treatment to ensure the pool lining is pristine before moving into the high-usage summer months or hosting guests.

Safety and Storage Precautions

• • Swimmer Exclusion: Do not allow anyone to swim during the treatment process; ensure the full 48-hour cycle (lift and prevent phases) is complete and water is rebalanced first.
• • Avoid Mixing: Never mix these pouches with chlorine or other chemicals outside the pool water; add them directly to the pool as per the instructions to avoid toxic gas release.
• • Handling Protection: Wear protective gloves and eye protection; the fine dust from the granules can cause serious respiratory and eye irritation if inhaled or touched.
• • Proper Storage: Keep the container tightly sealed and upright in a cool, dry place away from direct sunlight, acids, and strong oxidisers.

Frequently Asked Questions

• • How long must the pump run? The pump should be set to circulate continuously for 24 hours after adding the "Lift" pouch, and another 24 hours after the "Prevent" pouch.
• • Can I use this for organic stains? No, this product is for metal stains only; marks from leaves, algae, or mud require a different treatment like HTH Metal Remover or a shock dose.
• • Do I need to adjust my pH first? Yes, for the "Lift" phase to be effective, you must lower your pH to between 6.8 and 7.2 before adding the granules.

Clever Hack: The "Nylon Stocking" Spot Test

• • To confirm if your stain is metallic before buying the kit, place a few granules of HTH Stain Lift into an old nylon stocking and hold it against the stain for two minutes.
• • If the mark lightens or disappears, it is a metal stain and this product will work perfectly; if it doesn't change, the mark is likely organic (like algae or leaf tannin) and requires a chlorine-based shock instead!