Glenfield Learner Pool Filtration Upgrade

H2O Engineering was awarded the contract to undertake upgrade work at Glenfield Leisure Centre to the Learner Pool Filtration and Heating Plant, repairs to the Main Pool VDE Filter Tank and conversion of the Chemical Dosing System from Chlorine Gas to Sodium Hypochlorite including a pH correction system using CO2 Gas.

CLIENT: Auckland Council

This presented a unique challenge due to the requirement to carry out the installation in a tight time frame to coincide with the planed pool shut down. Also there was a requirement that the primary heating water circuit was kept running to provide heating for the air handling system.

Main Pool Filter Repairs

Remove all filter internals and water blast and wash internal surface
Patch repair damaged concrete
Coat internal surfaces with 3-coat epoxy paint system
Re-instate and repair where necessary filter components
Learner Pool Heating System

Dismantle existing Secondary (Pool Water) Heating pipework and booster pumps
Remove all redundant heating pipework
Re-install Booster Pumps and install new Secondary Heating Pipework
Learner Pool Filtration Upgrade
Supply, install and commission a new Pressure DE Filter and Filter Pump including modifications to pipework.
Modify connections for mains water make-up, heating and chemical injection connections.

Chemical Dosing System Modifications

Disconnect and remove Chlorine Gas Storage and Dosing Equipment
Supply and Install a new 4500L Sodium Hypochlorite Storage Tank and new Dosing Pumps for the Main and Learner Pools
installation of a CO2 Dosing and Storage System including Bottle Cage, Auto Change-over System, Distribution Panel and Injection Diffusers.

All the works were completed within the available time frame in 2012.