Hi again and thank you very much for your reply.
Yes, the leak is coming through the back of the drum and there is no particular like. But there is a leak when the water reaches the bottom of the impeller, even when it does not rotate.
In fact, I dare not remove impeller because I am not sure of being able to assemble properly afterwards. Moreover, disassembly seems very complicated, and if the seal is wrong, how to repair because it is certain that this seal can not be bought anywhere! What do you think?
Otherwise, I tested the program spin: the timer and spin are ok. The valve also works but I do not know if the machine automatically stops the water because I have also put a seal between the door and opening
see you
Bert