How to install a Big Blue Water Filtration System with 55W UV Sterilizer

Improve your water supply and quality with the whole house 3 Stage Big Blue water filter system, coupled with a 55W UV sterilizer. The system includes a complete set of 3 filter cartridges (5-micron sediment filter, carbon block filter, 1-micron sediment filter) suitable for most rainwater and municipal water filtration needs in South Africa. The cartridges are fitted into the system.

big blue water filter system with UV sterilizer
3 Stage Big Blue Water Filtration With 55W UV Sterilizer, Includes 2 Sediment Filters & 1 Carbon Block Filters

The 3 Stage Big Blue Water Filtration System with 55W UV Sterilizer is suited to purify rainwater and municipal water. It can process wellpoint water if it does not contain salt or heavy metal/ mineral pollutants. The 55W UltraViolet light neutralizes bacteria, protozoa and spores (including E.coli and Giardia).

Please note: The UV light is not preinstalled on the system due to the fragile nature of the UV bulb. Installation is required. The Big Blue housings come fitted with the first set of filter cartridges mounted in the correct sequence (5-micron, carbon block, 1-micron), however, these are still in their original packaging which needs to be removed before installation.

What's in the box

  • 3 x 20 Inch Big Blue filter housings
  • 1 x Mounting frame
  • 1 x 5-micron 20-inch Big Blue sediment filter
  • 1 x 20-inch Big Blue carbon block filter
  • 1 x 1-micron 20-inch Big Blue sediment filter
  • 1 x Complete 55W ultraviolet sterilizer (960mm length)
  • 1 x Big Blue spanner

Big Blue cartridge [w x h]: 11.4cm x 50.8cm
Pipe fittings size: 1" NPT

Not supplied:

  1. 2 x AMG fittings
  2. 1 x Shut off valve
  3. 3 x Unions
  4. 2 x RCG fitting
  5. Arm assembly: 4 x elbows; 32mm PVC pipe
RCG fitting, AMG fitting, union, shut off valve, arm assembly


You will also need PVC glue, thread tape and additional PVC plumbing pipe.

You will need to secure the water filtration system to a wall or other structure. This should only be done after you have assembled the system in full as follows:

Step 1:

Attach the AMG to the side of the system using thread tape

How to install a Big Blue Water Filtration System with 55W UV Sterilizer


Step 2:

Attach the shut off valve to the AMG using PVC glue (there is an arrow pointing in the direction of the flow)

How to install a Big Blue Water Filtration System with 55W UV Sterilizer


Step 3:

Remove the filter housings off the system using the Big Blue spanner & remove the plastic from the filters (keep them in the same order!)

Step 4:

Place the filters back on the system using the Big Blue spanner

Step 5:

Carefully insert the UV lightbulb into the quartz sleeve

How to install a Big Blue Water Filtration System with 55W UV Sterilizer

Step 6:

Remove the locknuts from the UV sterilizer & insert the quartz sleeve (the end of the quartz sleeve & locknut should match)

How to install a Big Blue Water Filtration System with 55W UV Sterilizer


Step 7:

Place the rubber on the end of the closed side of the quartz sleeve & attach the locknut. Repeat on the other side

Step 8:

To attach the mounting brackets, remove 2 x bolts from the system using a spanner

Step 9:

Place the UV sterilizer in between the brackets

Step 10:

Attach the 2nd AMG on the other side of the system using thread tape & then the union to the AMG using PVC glue

How to install a Big Blue Water Filtration System with 55W UV Sterilizer


Step 11: 

Attach the RCG fittings to the UV sterilizer using thread tape & then the unions on top using PVC glue (with the smooth side on top)

How to install a Big Blue Water Filtration System with 55W UV Sterilizer


Step 12:

Assemble the “arm” to connect from the system to the UV sterilizer: Glue 4 x elbows with 32mm PVC pipe in between each elbow. Attach 1 side to the union on system & the other side to the top of the UV sterilizer

big blue water filter system arm


Step 13:

Attach 32mm PVC pipe to an elbow & connect it to the shut off valve, this will be your incoming line. Then attach the outgoing line to the union on the UV sterilizer

 Watch how to install a Big Blue water filter system with a 55W UV sterilizer

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