Readers reply: Why do you have to get wet turning on the shower?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts

Why are shower controls often under the showerhead, so you have to get wet (and cold) turning on the water? Our shower is round the other way and it’s brilliant. Kathryn Grant, by email

Send new questions to nq@theguardian.com.

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