Our RV20 has been working brilliantly for the past few months. It has suddenly started leaking water from the tank. On inspections there are no cracks in the tank. The water leaks from the output port

I have just bought an RV20. Trying to get it to clean the floors where my couch stands. i moved the couch and trying to select the area for a spot clean but it just refuse to clean where it has obviou