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Floating Fountains & Dam Aerators

Floating Fountains and Aerators for Dams, Lakes and Large Ponds

Pond Help & Information

Need a hand working out the right gear for your project? Browse our range of help pages or submit a help request directly to our specialists.

Oase Filtoclear Pressure Filter

Oase Filtoclears are some of our best selling pressure filters, and have been for many years. The quality is second to none and a full range of spare parts are available to help keep your filter operating long past the warranty period.

The Oase FiltoClear range of pond pressure filters have outstanding filtration properties and are very easy to use. Water is pumped through the filter which can then be directed to a creek or waterfall, even if it is higher than the filter.

The filter works by first passing dirty pond water through an integrated UV Clarifier to destroy all algae responsible for green water. Dead algae along with all other dirty particles are then filtered out in large sponges which also double as a biological filter thus returning crystal clear water to the pond.

The filter is then very easily cleaned with the pull of a handle and simple back flush without the need for getting your hands wet. 

FiltoClear in action with the new dual inlet Oase Aquamax pump. The second inlet can be used for a skimmer or as shown to reduce dead spots in the pond.

  • Covered by the Oase Clear Water Guarantee when used correctly and under the right circumstances
  • Can be placed next to the pond, above or below the water level and can feed a watercourse / stream or waterfall while filtering
  • Mechanical and biological filter and powerful UV (Ultra Violet) clarifier all in one
  • Inside the filter is a bypass that ensures approx 70% of the water is subject to UV-C light. This guarantees sufficient radiation even at high flow rates.(remember Oase max flows tru the filter).
  • Easy to clean in a few simple steps. More information
  • German designed - Quality is of the highest standard.
  • Able to filter pond water, ponds up to 31,000 litres in size
  • Oase Filtoclear product manual in English
  • Larger two models, 19000 & 31000 are fitted with quartz sleeve cleaning rotor.
  • Large Oase filters 19000 & 31000 have non standard UV globes, but they can also use 36watt & 55 watt lamps (Oase approves these sizes)
  • 50 mm/ 2" BSPM (BSP male thread) inlet & outlet threads.

Aussie's Observations about  Filtoclear Pressure Filter

Budget • Good • Better • Best • Superior

Any pond filtration, particularly for waterfalls or streams where water has to be pumped higher than the filter.

The cleaning and back washing system is brilliant, as it does not have to be taken apart that often For easy clean information. Because the water passes across the UVC before the filter, the damaged algae spores are caught by the filter rather than being returned to the pond. Typical Oase quality, second to none.

Pressure filters are not ideal for Koi or Turtles, the better option would be a gravity filter, however, if a waterfall is in use using a single pump for both filtering and waterfall a pressure may be the best option if a gravity filter box can not be hidden at the very top of the waterfall

Product Price Filter TypeIdeal Flowlitres per hourMin Flowlitres per hourMax Flow L/Hourlitres per hourPond Max Vol (No Fish)litresPond Max Vol (With Fish)litresDimensionsL x W x H (mm)Back Wash SystemUVC FittedUltra violet lamp fitted as standardWarranty YearsCleaning IndicatorCanister Above GroundIf canister buried, how much shows above ground?Foam FiltersBio BallsFor micro-organism growthPower Cord LengthHose Tails SuppliedHose Tails OptionalMax Pump Pressure
Oase FiltoClear 31000 Pressure Filter Pressure Filter
$1,895.00
Pressure17,00031,00015,000*
7,500 With KOI
380 x 380 x 730Yes*
Also has cleaning Rotor for quartz sleeve
60 Watts*
Oase approves 55 watt lamps
2 + 1Yes250 mm55 m38 & 50 mm32 mm*
Get direct from us.
0.6 bar
Oase FiltoClear 5000 Pressure Filter Pressure Filter
$939.00
Pressure5,0005,0002,500**
Not recommended for KOI
380 x 380 x 370Yes18 Watts2 + 1YesYes25 m38 & 50 mm25 & 32 mm*
Need to order these from us.
0.6 bar
Oase FiltoClear 13000 Pressure Filter Pressure Filter
$1,237.00
Pressure9,00013,0007,000**
Not recommended for KOI
380 x 380 x 490Yes24 Watts2 + 1Yes35 m38 & 50 mm25 & 32 mm*
Need to be ordered from us.
0.6 Bar
Oase FiltoClear 19000 Pressure Filter Pressure Filter
$1,629.00
Pressure13,00019,00010,000**
5,000 with KOI
380 x 380 x 610Yes42 watts*
Oase approves 36 watt lamps
2 + 1Yes45 m38 & 50 mm25 & 32 mm*
Need to be ordered directly
0.6 bar

Filter selection

To choose the ideal filter for any pond you must first know the correct environmental flow to maintain ideal water quality for your pond. (Please remember that the pond size alone does not determine the filter or pump size without first taking into account the many environmental and physical factors) 
 
Ways to get help to establish flow

  1. Fill in one of our e-mail help forms and let us do all the calculations for you
  2. Give us a call 1800 607 388 for expert advice
  3. Do it yourself and use our quick reference flow calculator for rough estimate
  4. Establish the required flow through the filter keeping in mind waterfall** height if any, or long hose**
  5. Choose a filter from the chart below (Example if your pond requires a flow through the filter of 7,000 litres per hour, the Filtoclear 12000 would give the best result)
  6. Choose a pump, they are listed below in order of quality and suitability

Recommended flow through the filter

  5000 13000 19000 31000
Minimum flow 2,500 4,500 6,500 8,500
Ideal flow (see hint 4 below) 4,000 7,000 10,000 13,500
Maximum flow (see hint 4 below) 5,000 9,000 13,000 17,000

 

Suitable pumps for Filtoclear filters

  5000 13000 19000 31000
Most suitable pumps**
Assuming a waterfall is not over 500 mm high or the correct size hose is not longer than 3m
Oase Aquamax Eco Classic 3500

Laguna Maxflo 7500

Oase Aquamax Eco Classic 8500

Laguna Maxflo 7500

Oase Aquamax 14500 Eco Classic

Laguna Maxflo 11000

Oase Aquamax 17500 Eco Classic

Laguna Maxflo 16500

Other pumps
to consider**
Laguna Maxflo 5000 

Oase Aquamax 2500
Laguna Maxflo 9000 Laguna Maxflo 9000 

Laguna Maxflo 11000 

Laguna Maxflo 11000

 

For waterfalls higher than 500 mm, undersize hose already installed that can't be replaced or for a long hose length, one of the alternative pumps listed below my be better suited
What makes a pump that is specifically designed for sending water to a filter (such as the pumps above) superior to a multi purpose pump such as Reefe Dirty water pump
  1. The cage design is turtle shell shaped to attract solids from 360 degrees
  2. These pumps are designed to run 24/7 year after year
  3. They have a vortex impeller capable of handling solids without blocking

**Special note, if using a waterfall or a long hose between pump and filter the pump will need to be larger to allow for the reduced flow caused by the head (pumping height, and/or hose length) If in doubt Fill in one of our e-mail help forms and let us do all the calculations for you.
# A little under size for some pond sizes, but would work if the pond were smaller than the filters maximum volume rating.
## This pump is a little too strong, unless a waterfall over 1m is in place. However, you can never have too much pond flow, so, by releasing water back into the pond through a "Tee" and flow valve added circulation is provided for the pond. ***** Head over 5m will damage the filter and could even burst the container. On the other hand a pump with inadequate head may not provide enough flow through the filter.
In a nut shell ....The height difference between the filter lid and a pressure free outlet must not exceed 5 metres (0.5 bar).
So if the filter was mounted 1m above the pond surface, the pressure free outlet must not exceed 6m
There is however another factor in head calculations if long hose lengths are used, see "Friction loss in hose" under How to calculate your friction loss if your hose will be more than 3m. 

Aussie's additional thoughts


Tip 1: When calculating pump flow,  always allow at least a 15% flow loss when a filter is used.
Tip 2: Place the pump at the opposite end of the pond to the water return, and in the deepest part of the pond.
Tip 3: Tornado offer a liquid to prime filter systems, a great way to hasten biological activity. Bio-Starter
Tip 4: How the UVC takes care of algae etc .. When the water passes through the filter, the UV rays from the clarifier disturb the tiny algae spores that would normally pass through the filter, they then clump them together and they are caught next time through by the foam filters. The UV rays also kill off disease-causing agents as the water flows through the clarifier.  Your pond therefore virtually cleans itself.
Tip 5: Within reason the slower the water passes over the UV lamp and through the filter the better the result. However, you can never have too much pond flow, so, by having a slightly oversize pump and releasing water directly back into the pond or on to a feature or waterfall through a "Tee" with a valve (tap), added circulation is provided for the pond.
Tip 6: Head over 5m will damage the filter and could even burst the container. On the other hand a pump with inadequate head may not provide enough flow through the filter.
In a nut shell ....The height difference between the filter lid and a pressure free outlet must not exceed 5 metres (0.5 bar).
So if the filter was mounted 1m above the pond surface, the pressure free outlet must not exceed 6m
There is however another factor in head calculations if long hose lengths are used, see "Friction loss in hose" under How to choose your pump / filter if your hose will be more than 3m.
How it all works: Water is pumped into the unit and passes under the UVC lamp into the vortex system (settling zone). Suspended matter and bio-sludge are moved by centrifugal effect and gravity.
Dirt particles are trapped by the outer surface of the filter sponges before the water flows the entire length of the inner chamber.
Pores of the filter sponges form a large inner surface for micro-organisms to colonize and convert ammonium to nitrate. Other parts of the filter system are designed to support colonization of anaerobic micro-organisms that reduce nitrate to nitrogen.
A function switch is used when the dirty water is released, (back washed) at the same time the filter sponges are cleaned using a special pumping handle. The end result is clear / clean pond water.

 

How to clean your OASE Filtoclear Pressure Filter

Thanks to its unique ”Easyclean Technology”, cleaning Filtoclear is really easy and practical with just a few simple steps:

  Oase Filtoclear pond filter in working mode
Filtration

Algae and dirt are flocculated by the UVC clarifier. Then the ”treated” water flows through the filter unit’s fine mechanical and large-pore biological filter elements, which support the filtration process and clarify the water. The pressure produced by the pump allows the water to flow back into the pond via a watercourse or a water feature.
 

Cleaning
Activate the cleaning function by turning the rotary switch. Next, move the cleaning lever up and down, thus ”wringing out” the filter elements. At the same time, the pond water flows into the filter and forces the dirty water out. Then simply turn the switch back into the filter position.

 

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