On Sunday, 10 May 2020 09:30:56 UTC+1, John wrote:
As an aside - why does a Dyson (and possibly other uprights) seem to leave
the carpet looking better when pulled across.

The brush roller flings stuff towards the chute which is at the rear of the moulding, so cleaning is better when pulled. Also the carpet isn't then run over by the rear ball or wheels, so the pile is laid more evenly.


And why are carper shampoo machines designed to be pulled when pushing may
be more intuitive?

The main suck-up bit is at the front. It needs to be to get close to walls. So when putting down solution you push it forward to avoid the fresh laid solution being removed immediately, and when sucking the liquid out you pull so it scrubs before sucking.


NT