Seemingly easy answer, but it's a little different. The Whirlpool AVG 640 washing machine is double-walled and water flows out of the washing machine only when drained at full power (5 kg). I had it disassembled, I took off the weights, replaced the connecting hose between the tub and the filter, but I didn't find anything. Only one side can be disassembled, the defect will probably be somewhere in the upper part of the tub and unavailable. So far, I don't mind, because for one person, a program for 2.5 kg of laundry is enough and it works flawlessly. Of course, I could buy a new one, but I can't find one with that half program and lower spin speed (400 rpm). Would there be an idea?