13
3.
Commissioning the Filter
3.1 Introduction
With the system fully plumbed (see below) and the valve programmed commissioning can
start.
3.2 Backwash
When the system is fully functional the backwash will happen at the pre-set time (see
programming the valve section). However, running a manual backwash during commissioning
is the best way of removing air from the system, bedding in the media and flushing the
system.
Make sure the water inlet and outlet are closed. Press and hold the regeneration button for 5
seconds. The motor will turn and the piston will move to the backwash position. Slowly half
open the water inlet to the system, and then slowly open the outlet to allow the air to be
purged from the system. Once this has been done you can fully open the inlet and outlet and
allow the system to continue through the backwash cycle, this will allow you to check for leaks
and also purge any remaining air from the system. After a backwash the system will move
through a short rinse cycle and then stop in the service position.
For new systems or after a media change it maybe necessary to run two backwashes to fully
wash the media (check the water at the end of the backwash is running clear).
For TURBIDEX please see below.
Initial backwash instructions for Turbidex filtration media.
Due to the naturally occurring dust and fine particles found in zeolites it is important to
thoroughly clean the new bed to prevent plugging of the distributor slots. Zeolite fines are
crystalline in structure and may get wedged in the slots, becoming very difficult to remove.
Important:
Throughout this procedure, do not place the unit into rinse or service until you are
sure the bed has been cleaned of fines.
Always start the unit in backwash and slowly open the by-pass valve until the unit is full of
water (as evidenced by a gradual flow to drain). Shut off the by-pass and allow the unit to
Pressure
tank to
control
pump
F
il
te
r
sampling
point
OUTLET
Drain
Pump
Bypass
Summary of Contents for Water Specialist CI WS1
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