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Flush, Water Tank Clean 200gm, treats 182 litres.

Features

Drain or pump out water system, and add contents to bucket of warm water to dissolve.
Pour into tanks and top up with fresh water.
pump water through all pipework and leave stand for 5 mins for aluminium of stainless steel, or 12 hours for plastic.
Pump out water and / or drain.
Refil tanks with freshwater and pumpout/drain once more.

System is now fully clean and ready to use.