SupplementariesCompass Pools Australia Traditional filtration systems 1

While filtration systems may differ in regard to the filter type etc, they will all have the following basic features:

  • A skimmer box into which the water inflow carries surface debris such as leaves, oil etc into the start of the filtration system
  • An initial leaf basket in the skimmer box to trap leaves and large debris before water is sucked through the filter pump. It is also beneficial to fit a filter sock to the leaf basket to entrap further debris
  • A secondary hair and lint basket on the front of the filter pump
  • A filter which removes solids from the water
  • Eye-ball fitting(s) that return filtered and sanitised water to the shallow end of the pool, usually close to the surface level to assist with skimming

Traditional filtration systems

Note: To prevent rubbish inhibiting water flow and causing pump starvation these baskets need to be cleaned regularly

How Long to Run the Filtration System

It is generally recommended that your pool water be filtered (turned over) a minimum of once, but ideally 2 times per day. Pool turnover can be reduced in winter months when the pool is not being used.

Refer to the flow rate of your pool filtration pump as per the manufacturers specifications based on your pools installation. Then, using the pool volume listing in the Water Chemistry supplementary section of this manual, you will be able to establish how long it will take to turn over the pool volume for your specific installation.

It is preferable to divide these times into two equal cycles, one in the morning, and one in the evening.

Running time of pool filtration system

Notes: If using a saltwater chlorinator, or other chlorination device, ensure you have sufficient chlorine generation for your predetermined filtration running times.

If using a variable speed or multi speed filtration pump, running times may need to be extended to achieve adequate turnover and filtration of the pool water. Contact your authorised pool technician for appropriate running times.

Always keep the water level as high as possible (3/4 up the skimmer box is ideal). Never let the water level get below the mouth of the Skimmer Box as this may result in your pool pump running dry, which will void the manufacturers warranty.

When your pool is being used, it is recommended that your pool filtration system is running.

Types of Filters

All filtration relies on removing solid matter from the water as it is pumped through the filtration medium. There are two types of filtration, these are currently Sand filters and Cartridge filters. Both types have high flow characteristics and are highly efficient. However, they all require cleaning to remove entrapped solids.

Failure to clean the filter will result in reduced filtration flow.

Regular cleaning, as indicated by the pressure gauge, is therefore essential. Cleaning methods will depend on the filter type.

The Pressure Gauge

As the process of filtering the pool water continues, the filter collects solids from the pool water. These solids build up over a period of time. As this build up increases, the gauge pressure rises accordingly.

Refer to owner’s manual to determine maximum pressure for individual systems, i.e. Sand or Cartridge before cleaning.

Note: It is recommended that you take a note of the pressure when the filter is clean to determine the normal operating pressure so as to know when the filter requires cleaning.

Pressure gauges can fail. However they are inexpensive and simple to replace. Always use a spanner on the nut of the gauge and DO NOT try to tighten by using the gauge body – DO NOT OVERTIGHTEN.

Cartridge Filters

Cartridge filters are cleaned by dismantling and hosing down the filter elements. There are also special cartridge cleaners available for soaking the filter elements prior to hosing down.

Cleaning the Cartridge Filter

  • Switch the pump OFF.
  • Close any valves to stop water flow during cleaning process.
  • Bleed air pressure by opening bleed screw in the lid.
  • Remove the filter lid.
  • Remove the cartridge and clean as per manufacturers recommendations
  • Replace the cartridge and lid, make sure “O” ring is seated correctly
  • Re-open any valves closed in step 2 above
  • Switch the pump on.
  • Bleed air by opening bleed screw in the lid.
  • Check for leaks.
  • Clean the filter elements monthly, or as necessary

Sand Filters

Sand filters are cleaned in “Backwash” mode, which is to reverse the flow of the water through the filter tank to flush the rubbish to waste.

Backwashing the Sand Filter

  • Switch the pump off
  • Turn the rotary valve handle to “Backwash” position
  • Switch the pump on
  • Run the pump motor until the water in the valve sight glass (if fitted) is completely clear.
  • Alternatively, visually check the water going to waste.
  • Switch the pump off
  • Turn the rotary handle to “Rinse” position (Never turn the multiport valve whist the pump is ON. It must always be OFF).
  • Switch the pump motor on
  • Run the pump motor until the water in the valve sight glass (if fitted) is completely clear.
  • Alternatively, visually check the water going to waste.
  • Switch the pump off
  • Return to the “Filter” position
  • Switch the pump on.

General Equipment Maintenance Requirements

Skimmer Box & Pump Baskets

Regularly clean the baskets. Remove any small pieces of vegetation. Examine basket for any splits. Sometimes a split can be hidden in the plastic pattern. Replace split basket even if it does not appear to be bad. The basket in position with the water flow opens up the split and lets debris through to the pump and usually inhibits the water flow. Filter socks are available to catch debris and further protect the baskets. Avoid hitting baskets on the ground to dislodge debris, as this will only split the basket. Use a hose to clean the baskets.

Other Pool Equipment

For general maintenance on other pool equipment fitted to your pool, i.e. Chlorinators, Pool Lights etc, please refer to the manufacturer’s instructions.

Your pool equipment is covered by the original equipment manufacturer’s warranty. Refer to Operator Manual for service requirements. It is a good idea to house the pool equipment undercover as this protects components from weather and damaging ultra-violet rays.