When the soil behind the wall gets wet it exerts extra force, drainage is needed in order to stop your wall failing.
It might be a good idea for you to fill in behind the wall with pea gravel to prevent your drainage getting blocked.
Hi
You posted a while back that you were replacing your washing machine ... If you still have it lying around I'd be interested in purchasing it for parts - I have the exact same model ... with a broken spider...
Thanks
Jason
Hi
I have a bosche washing machine WFF2000GB/12 with a broken spider - the machine is fine otherwise ... if anyone has a machine they are replacing then I'd be interested in buying it for parts.
Thanks
Jason