Nescafe Dolce Gusto Oblo Coffee Machine Water Leak Fix For £1.88 

Here is the part i ordered off Amazon Prime for £1.88 amzn.to/3FU3spU

Perfetto, avevo montato il serbatoio nuovo e perdeva da sotto, cambiando la guarnizione ho risolto il problema, minima spesa e massima resa. Grazie.

This is very interesting solution.

This is not too smart solution of the problem. After disassembly the rear wall of machine the seal is easy to exchange without killing that ould one and pusching new into the narrow gap. During this action you have to buy several new seal and costs are inceasing as a result of faulty pusching that component. Th seal works properly only if is correctly instaled.