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This single simplesilver™ block, under normal use, will control your hot tub water for 12 months. No other chemicals or treatments are required.
One 500g simplesilver™ block controls hot tubs of up to 1,500 litres for a 12 month period. If your hot tub water volume is greater than 1,500 litres, then additional 500g or 1kg blocks must be used.
Should you wish to drain your hot tub and remove the block, it must be kept dry and can then be reinstalled at any stage. When reinstalled, the simplesilver™ block will last for the remaining life span.
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