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Sunday 28th August 2016
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Is rainwater safe to drink?


If I left a cup outside my house, would it be safe to drink rainwater?
Tyrone, Clapham


** Definitive **
Name: Professor Hal
Qualification: Mystery Hour’s most capped player
Answer: Rainwater is the most purified and best water you can get – it’s manna from heaven. My koi carp can attest to this - chlorinating water makes it toxic for koi, but rainwater is fine.