Ocean Protect
| Jellyfish Operations & Maintenance Manual
Page 5 of 8
Maintenance Procedures
To ensure optimal performance, it is advisable that regular maintenance is performed. Typically the Jellyfish
requires a service every 6 months, additionally as the Jellyfish cartridges capture pollutants they will need to
be replaced (expected cartridge life is 2-5 years with a maximum cartridge life of 5 years).
Primary Types of Maintenance
The table below outlines the primary types of maintenance activities that typically take place as part of an
ongoing maintenance schedule for the Jellyfish.
Description of Typical Activities
Frequency
Minor Service
Removal & rinsing of cartridges
Wash down of deck level
Removal of large floatable pollutants
Removal of accumulated sediment (if required)
Every 6 Months
Major Service
Replacement of Jellyfish cartridges
As required
Maintenance requirements and frequencies are dependent on the pollutant load characteristics of each site.
The frequencies provided in this document represent what the manufacturer considers to be best practice
to ensure the continuing operation of the device is in line with the original design specification.
Minor Service
This service is designed to assess the condition of the Jellyfish cartridges and record necessary information
that will establish whether a major service is required.
1.
Establish a safe working area around the access point
2.
Remove access covers
3.
Using a vacuum unit or net remove any floatable gross pollutants contained behind the
maintenance access wall
4.
Using a vacuum unit decant the water until the level drops below the base of the cartridges
5.
Remove Jellyfish cartridges*
a.
Remove cartridge lid
b.
Remove cartridges vertically from chamber, lifting from eye nut lifting points only
c.
Replace and secure cartridge lid back into deck to reduce trip hazards during maintenance
6.
Unscrew all 11 tentacles from the cartridge head plate, keep all components for reassembly*
7.
Rinse each tentacle individually NOTE: excessive water pressure may damage the tentacles
a.
Position tentacle in a container (to capture runoff) with the open end facing down
b.
Rinse entire length of cartridge using only low pressure water source (e.g. garden hose).
c.
Evaluate and note the condition of the tentacles
d.
Ensure runoff is disposed appropriately
e.
Re-assemble cartridges ready for reinstallation*
8.
Wash down deck level to remove any built up sediment (if required)
9.
Measure the level of accumulated sediment in the chamber if depth is greater than 300mm use
vacuum unit to remove sediment.
10.
Re-install Jellyfish cartridges
a.
Remove cartridge lid
b.
Lower cartridge into chamber, lifting from eye nut lifting points only
c.
Insert cartridge vertically into cartridge receptacle, and secure cartridge lid back in place
11.
Replace access covers
*Refer appendix 1 for Jellyfish Cartridge Schematic
