4allweknow
Without a brush how will under the rim be cleaned. The water holes can clog up with eg limescale, mould. Can't imagine a wipe with a cloth will remove any build up.
As I have mentioned, our loo is rimless, soooo much better than a rimmed one, if anyone is replacing their loo, get a rimless one. So much easier to keep clean.
As for the water holes, I clean them with an old toothbrush.
And it is not then used for brushing our teeth!
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