First question: have you tried adjusting the water pressure by turning the tap off a little bit? If so, did it still leak?
When did you buy the machine? It would be worth contacting John Lewis again and stating that you believe it's not fit for purpose due to the leaking - this will be under the Consumer Rights Act.
When did you buy the machine? It would be worth contacting John Lewis again and stating that you believe it's not fit for purpose due to the leaking - this will be under the Consumer Rights Act.
