Connecting The Drain Hose - Miele PG 8080 Operating Instructions Manual

Water connection

Connecting the drain hose

– The machine drainage system is
fitted with a non-return valve, which
prevents dirty water from flowing
back into the dishwasher via the
drain hose.
– The dishwasher drainage hose
should preferably be connected to a
separate on-site drain for the
dishwasher only. If no separate
connection is available, we
recommend connecting it to a dual-
chamber siphon.
– The dishwasher is supplied with
approx. 1.5 m of flexible drain hose
with an internal diameter of 22 mm.
Hose clips are supplied with the
dishwasher.
– The drain hose must not be
shortened. The hose can be
extended using a connection piece to
attach a further length of hose. The
drainage length must not be longer
than 4 m and the delivery head no
higher than 1 m.
– The drainage system must be able to
accommodate a minimum drainage
flow of 16 l/min.

Make sure that there are no kinks
in the hose, and that it is not
squashed or stretched.
68
Venting the drainage system
If the on-site drain connection is
situated lower than the guide path for
the lower basket rollers in the open
door, the drainage system must be
vented. Otherwise a siphoning effect
during a programme can cause the
appliance to empty itself of water.
To vent it:
 Open the commercial dishwasher
door fully.
 Pull the lower spray arm firmly
upwards to remove it.
 Cut off the top of the vent valve in the
wash cabinet.