Lu-Blue In-Cistern Blocks x12

Remove a block from the pack. No need to remove the pleated wrapper as this will dissolve in the water. Drop the Easy Lu-Blue block into the cistern. Allow 10 minutes for the block to settle before flushing. Replace with a new Easy Lu-Blue block as soon a the colour starts to fade. Safe to use with septic tanks as well as other toilet products. Do Not use in porous, crazed or cast iron cisterns.

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