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MULTICYCLONE PLUS FILTER MAINTENANCE
The MultiCyclone Plus filter maintenance is determined by the following conditions:
1. The sediment chamber is half filled with sediment. This accumulation of sediment can be
visibly monitored through the MultiCyclone Plus’s clear sediment chamber. The MultiCyclone
Plus is cleaned by simply opening the purge valve. Only 15 litres (4 gallons) of water is
discharged to clean the MultiCyclone of sediment.
2. A pressure gauge reading of 50kPa (7.2psi) above the operating pressure may result in a
reduced flow rate that is insufficient to meet the requirements of the pool.
Example: Filter operates normally at 60kPa (8.2psi) needs to be cleaned at 110kPa (16psi).
Flush out the sediment chamber
With pump running:
Whilst the water pump is running simply open the sediment purge valve until the sediment has
been flushed out. This is visible through the clear sediment chamber. Once the sediment has
been flushed out, close the purge valve.
Without pump running:
Alternatively, switch the pump, off. Open the air release valve and then open the purge valve.
The water will drop through the MultiCyclone Plus flushing out most of the debris from the
sediment chamber. Then close the air release valve and turn on the pump and the turbulence
of the water entering the sediment chamber will flush out the rest of the sediment. Once the
sediment chamber has been cleansed, close the purge valve, start the pump and close the air
release valve once water is flowing out through the air release valve.
INSUFFICIENT WATER PRESSURE
In situations where the water flow from the pump is not powerful enough purge the sediment
out of the sediment chamber. Waterco recommends fitting a 2 way valve after the MultiCyclone
Plus on the pool water return line.
The 2 way valve is used to throttle the flow of water out of the MultiCyclone Plus, increasing
water turbulence through the sediment chamber and improving its purging action.
Whilst the pump is operating, open the purge valve, and then partially close the 2 way valve,
throttling the water flow sufficiently to purge the sediment chamber of trapped sediment. Once
the sedimement chamber is clean, open the 2 way valve and then close the purge valve.
Do not close the 2 way valve prior to opening the purge valve and do not close the purge
valve while the 2 way valve is closed or partially closed. Both valves should never be
closed or partially closed at the same time.
FILTER CARTRIDGE MAINTENANCE
To ensure maximum life from your MultiCyclone Plus’s filter cartridge you need to maintain the
filter cartridge regularly.
When the filter is first started and has been purged of air, note the pressure on the pressure
gauge. This is what is known as the filter operating pressure and it is important that you be
aware of this figure.
All filtration systems will operate at different pressures depending on the pool hydraulics.
You will need to clean the filter cartridge once the pressure gauge has reached 50kPa (7.2psi)
above the operating pressure.
Example: Filter operates normally at 60kPa (8.2psi) needs to be cleaned at
110kPa (16psi).
Cartridge Cleaning
Prior to removing the MultiCyclone Plus cartridge filter’s lid, you will need to release the pressure
from the filter cartridge housing. With the pump off, loosen the air release valve on top of the
MultiCyclone Plus filter lid to release pressure from the filter housing.
1. Undo and remove the clamp around the cartridge filter’s lid by unscrewing the tightening
nuts, this can be either by hand or using a 25mm (1”) open end spanner/adjustable wrench
on the moulded hexagon section and remove the lid off the filter tank.
2. Remove the filter cartridge from the filter housing.
3. Using a garden type hose clean the surface of the pleated element. Make sure to clean
between the pleats.
4. Place the filter cartridge back into the filter housing ensuring that it is seated correctly.
5. Ensure the lid “o”-ring is clean of any debris and is correctly seated into filter body “o”-ring
groove prior to lid being refitted.
6. Place the lid onto the filter housing and refit retaining clamp band and tightening nuts using
a 25mm (1”) open end spanner/adjustable wrench ensuring lid is correctly fitted.
7. Refer to the start up procedure to recommence operation.
MultiCyclone Plus
Do not over tighten the lid tightening nuts.
