Miele T8013C - Manual (Page 37)

Installation requirements
demanding a non-return valve
,
To prevent water from flowing
back into the machine a non-return
valve must be installed at the
following installations:
– Installation to a sink standpipe
– Several installation possibilities
where additionally another washer or
dishwasher is connected to.
Example: Connection to a sink
standpipe
Connect the drain hose with a
non-return valve directly to a sink
standpipe.
^ Remove the accessories from the top
rear of the dryer:
Connector 1 and the hose clamp 3
behind it.
Installation
33