14
JUDO SPEEDY-LongLife
Operation
5.3
Backwashing
The filter must be backwashed (=cleaned) at
the specified cycles in order to remove the
filtered dirt from the fine filter screen.
A complete backwashing process is carried
out by turning the handwheel through a full
turn. At the same time the handwheel
ensures free discharge.
When the handwheel is rotated in any direc-
tion three suction pipes rotate around the
fine filter screen.
At the same time a patented ceramic
flushing valve on the underside of the back-
wash protective filter opens so that the back-
washing water can flow out. The treated
water flows from the inside outwards
through the screen into the suction pipe,
taking the adhering particles with it.
During
this time treated water flows out.
The fine
filter screen is cleaned. At the same time the
inside of the transparent filter cover is
cleaned together with the wiper lips of the
suction pipe.
Immediately continue turning the handwheel
until it audibly locks into place.
The ceramic flushing valve thus closes
again and the backwashing process is
completed.
This backwashing process can be repeated
if necessary.
ATTENTION
(see chapter “Safety information and
dangers due to non-compliance”)
This backwashing process must be carried
out until the audible locking into place of the
handwheel. If the locking process is discon-
tinued before the audible locking into place
the ceramic flushing valve is not fully closed.
Water permanently escapes as a result.
Apart from high water consumption, this can
also cause water damage, especially if the
backwashing water is not discharged as
described in the chapter “Discharging the
backwashing water”.
5.3.1 Backwashing interval
The filter must be backwashed:
–
every two months at the latest
–
if the water pressure falls.
–
if the backwash protective filter is visibly
dirty
All filter sizes are backwashed with
treated water. The treated water
supply within the domestic installa-
tion is maintained throughout the
backwashing performance. During
the backwashing any wastewater
can't get into the pure water side.
The degree of pollution as well as
the cleaning off operation can be
watched from outside.
There is a display button on the built-in
rotary flange (JSY-LF ¾" – 1¼"), respec-
tively on the filter bell (JSY-LF 1½" – 2")
attached to the filter. It can be slid along
the months scale. This enables the back-
washing interval to be monitored.