- I recommend, a really useful robot. - The first time I cleaned the robot, it was assembled very high quality, at many joints and junctions of parts there are additional silicone seals. - For information - a tank of water at the maximum water flow rate (combined, in which the brush works) is enough for about 65-70m2, of which 10m is a tile, consumption / absorbency is less. - In order for the washing to begin effectively immediately and in full volume of the washing surface - before cleaning I moisten the cloth with water, the entire surface.