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Neptune Sand Filters

How does a sand filter work?

  • Pool water containing suspended dirt particles, is pumped through your piping system and is automatically directed by the filter's multiport valve to the top of the sand filter tank. As the pool water is pumped through the filter, dirt particles are trapped by the bed of filter media inside the tank, and is then filtered out. The cleaned pool water is returned from the bottom of the filter tank, through the multiport valve and back to the pool through the piping system. 

Where should I install my sand filter?

  • Your sand filter should be placed on a level concrete slab, very firm ground or equivalent. The filter should be placed in the right position so that the piping connections and multiport valve are convenient and accessible for operation and servicing.

What are the different valve settings on the sand filter?

  • "Filter" - normal filtration and vacuuming.

  • "Backwash" - cleans filter by reversing the flow.

  • "Rinse" - use after Backwash to flush dirt from the valve.

  • "Waste" - bypasses the filter, use for vacuuming to waste or lowering water level

  • "Recirculate" - bypasses the filter for circulating water to the pool

  • "Closed" - shuts off all flow to the sand filter or pool

How do I fill up my sand filter with filter media?

  • Filter media is loaded through the top opening of the filter, the multiport valve must be removed to do this. We recommend filling the tank approximately half way with water to provide a cushion effect when the filter media is poured in. This helps protect the under-drain laterals from excessive shock. Pour in the correct amount of filter media, ensuring the centre pipe remains centred. Media surface should be levelled and should come to about the middle of the filter tank. Replace the multiport valve back to normal.

Neptune Cartridge Filters

How does a cartridge filter work?

  • Cartridge filtration is an effective trouble-free proven method of filtration. Pool water enters the filter and passes through a polyester single element cartridge. Suspended particles are trapped and the water is returned to the pool. As the build-up of dirt in the element increases, so the water pressure rises and the flow decreases. When the pressure reaches an unacceptable level, the element must be removed and cleaned (spray washing with a common garden hose is generally sufficient). 

Where should I install my cartridge filter?

  • The cartridge filter should be placed in its permanent location, preferably as close to the pool or spa as practicable. Position the filter tank and pump on a level concrete slab or similar base.
    Allow sufficient space around the filter for routine maintenance and provide for adequate
    ventilation and drainage.

How do I clean my cartridge filter?

  • When the filter gauge reading is 50-70kpa above the clean filter gauge reading, cleaning the
    single element cartridge is required. Switch off the pump and close isolating valves on suction and discharge lines where fitted. Open the air bleed valve on the filter lid. Unscrew the lock ring, remove the filter lid and lift out the cartridge element. In most cases the element can be easily cleaned with a garden hose with good water pressure.

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