We own silk ca 3 years Senseo 7810. Just over a year we have in the meantime every now and again the problem that the coffee making facilities in between interrupts and the lamp blinks rapidly. Then pour water from the water tank, relieve shake back and forth through the float and the coffee will be prepared until the next interruption. Now we have bought a new tank and be annoyed that you have not done it much earlier. Impeccable merchandise at a great price and Blitzversand.