11
Manual Backwash Water Filter Systems
Maintenance
Maintenance
Filter Cleaning
Puretec recommends backwashing the screen every 3-4 days, or at user dicretion,
whenever there is a drop in presure. If necessary, backwashing can be repeated.
During the backwashing process, the filter discharges some water . This discharge can be
run off to a drainage point.
The cleaning of plastic parts can only be performed with a soft damp cloth, without using
any solvents, soaps or acid detergents.
Note:
In order to obtain effective cleaning of the filter, a minimum water pressure of
2 bars is required. If necessary, during the filter cleaning operation , the shut off valve
positioned downstream of the filter should be closed.
Periods of Non-Use
For periods of non-use less than 30 days, perform the filter cleaning operation repeatedly
(4-5 times). For non-use periods longer than 30 days, perform filter sanitisation.
Non-use means the that the plumbing system remains still without any water being
drawn from the taps (e.g. holiday period).
If the plumbing system is subject to cleaning and sanitising maintenance, the IMB system
should also be included in the maintenance plan.
Note:
The sanitising maintenance and must be carried out exclusively by a qualified
plumber.
FILTER CLEANING
1° "CLICK" BACKWASH
Rotate the green
handle clockwise until
the first "click".
Keep the handle in
this position for a few
seconds, until all of
the build up has been
removed from the filter
cartridge.
2° "CLICK" FILTRATION
Rotate the green
handle clockwise again
to bring the filter back
into the operation posi-
tion with the discharge
valve in the neutral
position.
