EnwaMatic® Bespoke BS 300
Operation
The EnwaMatic® Bespoke BS 300 is a dedicated side stream filtration / water treatment unit for
the DHS. A small percentage of the main flow is diverted through the vessel, such that total
system volume is turned over 1 - 2 times per day.
Side-stream filtration to less than 5 microns.
Inhibition of corrosion – maintaining a dissolved iron level of < 1.0 mg/l.
Regulation of hardness and scaling through calcite / dolomite media filtration.
Removal of air through integral air separation device.
Environmental restriction of bacterial growth.
Normal operation:
During normal operation, water enters the top of the vessel, passing through specialist filter
media, reaction media and gravel base layers to a strainer on the bottom outlet. Debris is
progressively collected by the filter media as it passes through the bed.
The flow rate is 200 l/min. This equates to position 7- 8 on the sight flow indicator.
Flow rate through the unit can be observed on the sight flow indicator and adjusted using the flow
regulator valve on the central column (see mechanical schematic).
This is a fully automated backwash system, requiring no on-site operation or maintenance.
Isolation:
The unit should be isolated by:
Pressing ‘Off’ on the control panel PLC interface.
Closing the main system isolation valves.
Turn off control panel prior to undertaking any work on the equipment.
The unit can be isolated for several days without a deterioration in water quality. If prolonged
periods of isolation are required, please contact ENWA for advice.
Automated backwash:
Backwashing is set at the control panel for 2 week intervals as default. This will be reviewed at
commissioning and on follow-up visits. The actuator positions and direction of water flow during
service and backwash are shown in the enclosed drawing.
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