What to buy?

Hi there all who read this
I am after a purifier machine and from doing various research it appears that a ioniser/alkaliser machine (average price £500-£2000)that produces micro clustered water is well worth the investment.
Is there any other better/cheaper alternative? I own a very small vortex energiser (it connects 2 bottles together), but this is fiddly and time consuming based on the small amount that it produces.
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