ALGAEFREE AUSTRALIA STAIN CONTROL - SPOTBLOC - STAIN ERASER CHALK

ALGAEFREE AUSTRALIA STAIN CONTROL - SPOTBLOC - STAIN ERASER CHALK - 250 g

Product Details

Algaefree Australia SpotBloc Stain Remover is a unique, underwater stain-removal chalk engineered to dissolve stubborn mineral, metal, and organic discoloration directly from your pool or spa surfaces. Formulated using advanced Block Technology, this targeted eraser blends special acids and chelating agents into a solid chalk format that lifts localized blemishes without requiring you to drain your pool water.

Key Features & Benefits:

Multi-Stain Eraser: Dissolves tough waterline scum marks, calcium scale deposits, rust marks, and organic blemishes from plant debris or leaves.
No-Drain DIY Formula: Eliminates localized discoloration directly underwater, saving time, chemical costs, and thousands of liters of pool water.
Versatile Application: Works safely across a variety of surfaces, including pool walls, steps, grouting, spas, and above-water paving or stone surfaces.
No Specialized Tools: Can be applied directly by hand using rubber gloves, or attached to a telepole using a standard pool block holder to reach deep pool floors easily.

Advanced Chemical Action:

Unlike liquid stain treatments that dilute into thousands of liters of pool water, SpotBloc delivers concentrated chemical action exactly where it is needed. Its blend of heavy-duty organic acids and chelating agents breaks the molecular bond between the stain and the pool surface, safely "unlocking" mineral discoloration from iron, copper, calcium, and manganese.

Direct Application Instructions:

Identify the Stain: Locate the target area on your steps, waterline, or pool floor.
Apply in a Criss-Cross Motion: Wearing rubber gloves, rub SpotBloc directly onto the blemish using a criss-cross pattern to build up a thin layer of active chalk. For deep water, attach the chalk to a block holder.
Rest and Reapply: Allow the layer to work underwater. Check the area after 24 hours. For severe or old stains, rub a fresh layer onto the area across multiple consecutive days.
Dry and Store: Once finished, remove the block from the water, let it dry completely in a safe place away from children, and return it to its jar for future spot treatments.

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