In this episode we look at the amazing history of where drenching began then move onto the various classes of drenches available today. We look at what their properties are and their role up to today and the best way we can look after them now.

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Ian's limerick
I looked up and just gave a shrug
A hundred and one types of drug
They all make the claim
That sounds just the same
And I feel like an absolute mug

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