Sponge Yellow and Blue for PondMAX PF4500 PF9000 Aquapro AP5000 AP10000 Pressure Filter / UV clarifier – 11MC921 11MC922

As established brand by the global leader, Aquatec Australia, PondMAX offers an affordable yet resilient DIY range.

Rock Around The Block is proud to be an authorised dealer for PondMAX product range.

Yellow and Blue Sponge for PondMAX PF4500 PF9000 and Aquapro AP5000 AP10000 Pressure Filter / UV Clarifier.

NOTE : A QUANTITY OF 1 EQUATES TO 1x SPONGE (EITHER YELLOW OR BLUE AS PER SELECTION)

Specification & Features:

• These Sponges are suitable for PondMAX PF4500, PF9000 and Aquapro AP5000, AP10000 Pressure Filter / UV Clarifier
• Only the Yellow and Blue sponges without the Spool / Plastic Column. The Plastic Column / Spool is sold separately.
• PondMAX PF4500 and Aquapro AP5000 requires:
  • 2 x Yellow Sponge - Fine - (without Spool) Ø260×50 - 11MC922
  • 2 x Blue Sponge - Course - (without Spool) Ø260×50 - 11MC921
• PondMAX PF9000 and Aquapro AP10000 requires:
  • 3 x Yellow Sponge - Fine - (without Spool) Ø260×50 - 11MC922
  • 2 x Blue Sponge - Course - (without Spool) Ø260×50 - 11MC921
• The yellow and blue filter sponges differ in density. The higher density foam allows the water to pass through at a slower flow rate promoting colonisation of Nitrosomonas Nitrifying bacteria. This bacterium converts ammonia into nitrites and limits Carbon dioxide fixation. While the lower density sponge allows the water to pass through faster promoting colonisation of Nitrobacter bacteria. This bacterium converts nitrites into nitrates.

Recommendations:

• The filters sponges will clog over time and should be cleaned regularly to ensure strong water flow. Failure to maintain the unit will result in a burnt out motor and other damages to the filter unit.
• Frequency of Filter sponge maintenance depends on the volume of water and number of fishes / turtles in the pond.
• The best time to clean the filter completely is while completing 20% water change, as you can use the pond water you are discarding to clean all parts of the spongers. Please note that Chlorine in tap water will kill the good beneficial bacteria accumulated on filter sponges.

Steps to use the Backwash function:

• 1. Whilst the filter is still functioning, connect tubing to the backflush outlet of the filter. You may divert the dirty water into a garden bed or into a drain.
• 2. Turn the valve on the backwash outlet to open.
• 3. Now turn the backwash arrow shaped dial on the top of the filter to “clean” mode. The arrow will face towards the ball valve backwash outlet. The water from the normal outlet will now be diverted through the backwash outlet.
• 4. Turn the cleaning handle anti-clockwise on the filter unit several times (24-36 times) or until the water exiting the backflush outlet runs clean. This squeezes the filter sponges and cleans them mechanically.

Steps to Clean / Replace Filter Sponges:

• 1. Turn off the Pressure Filter and disconnect the power cord from any electrical source.
• 2. Undo the threaded inlet and outlets hose tails from the filter, unclip the lid clamp and carefully remove the lid. Take care not to lose or damage the O-ring seal.
• 3. Unscrew the clear locking screw at the bottom of the filter sponge layers (or the black base plate on bigger models).
• 4. Undo the screw that holds the stainless-steel shaft in place and remove the base plate.
• 5. Remove the foam sponge rings from off the centre cores and rinse them in dechlorinated water or pond water. Be sure to thoroughly squeeze the sponges to remove sludge.
• 6. After cleaning, place back the foam rings onto the centre core. The Foam rings should be alternate from Blue to Yellow.
• 7. Secure the lid back in place while ensuring that the O-ring in the correct position. You may use food safe grease to lubricate the O-ring.