What Size Pond Pump Do I Need

Use this quick reference Pond Flow Estimator to find the ideal flow rate to proceed your pond healthy when running a filter. This allows you to select the correct size filter for your pond within ten-15% accuracy.

If you don't wish to apply this chart to size up your filter manually, nosotros tin can do it for you past submitting our online aid form - click here.

Step 1 - Constitute your pond volume

Circular Ponds
Diameter x Diameter X Depth (meters) X 785 = Book in litres
Rectangular Ponds
Length x Width x Depth (meters) x 1000 = Volume in litres
Odd shaped (Such as Kidney or rounded corners)
Boilerplate Length x Average Width x Average Depth (meters) 10 800 = Volume in litres
Triangular
Length x Width x Average Depth (meters) dissever past ii x 1000 = Volume in litres

Case A rectangular pond 4 meters average length 10 3 meters average width x 70cm average depth

Pond Volume: 4.0 x iii.0 x .vii x thou = 8,400 litres

Important If the sides of the pond are non vertical but tapered, reduce the volume by x%

Step 2 - Option your correct menstruum

Please make a notation of your pond volume now. Now apply the pond volume to the chart beneath, using the fish stocking and sun situation of your pond to decide the estimate water menstruation required to maintain a good for you environment for your pond and information technology's inhabitants.

Choose the fish stocking that best suits your future fish stocking (allow a little extra for growth)

No fish

No fish = Natural garden ponds with plants only no fish.

= Light fish - Natural garden swimming with plants and total fish length upward to 400mm* per 1,000 litres

= Medium fish stocking - Pond with plants and total fish length of up to 800mm* per 1,000 litres
or Light Koi/Turtles with a total length of up to 400mm* per one,000 litres

= Heavy fish stocking with a total length up to 1000m* per 1,000 litres
or Medium Koi/Turtles with a total length of 500mm* per ane,000 litres

= Extra Heavy fish stocking with a total length over 1000mm* per one,000 litres
or Heavy Koi/Turtles with a total length of 500mm* per 1,000 litres

*Fish when measured end to end Special note - The more plants the better

Armed with the pond volume and fish stocking, add the other factors, lord's day shade etc

Pond in shade

Pond in partial shade

Pond in full sun

Pond in shade

Pond in fractional shade

Swimming in direct sun

Or shade cloth

Sun on the swimming for a max of fifty%

Full sunday in summer all twenty-four hour period

Also allow for pond depth, your location and hose

If the pond is

less that 300mm deep add 75% to the flow

between 301 & 450mm deep add fifty% to the menstruation

between 451 & 600mm deep add 25% to the catamenia

If y'all alive in

Tropical (Qld, NT or northern WA) add 35% to the flow

Sub tropical (Northern NSW) add 25% to the menstruum

Temperate (NSW, SA, VIC, Southern WA) add fifteen% to the flow

Hose length and diameter

If your total hose length is over 4m, or your waterfall is over 500mm, or if you have an existing hose that may be too small and can't be replaced, it may now be the time to either:

Fill in one of our due east-mail help forms and permit united states do all the calculations for you lot
Give us a telephone call 1800 607 388 for expert advice

Step iii - Choose your filter

You now have the platonic menstruum through the filter in litres per hour for a healthy pond.

Now you need to decide what type of filter your require.

E'er choose the filter showtime.
The horse must be ahead of the cart, and then the filter must first exist chosen earlier y'all tin can choose your pump. On each filter folio there is a section named "suitable pumps"

(Call up your ideal flow through the filter volition be needed)

Click one of the links beneath. Yous can sort through our range of filters very hands using a table in order to select 1 that suits your flow requirements.

Select your Pressure Filter

Select your Gravity Filter

Jump straight to our selection of Filter Pumps*

*Please ensure yous accept selected your filter before you choose a pump

How we established these figures

The higher up quick reference calculator represent the approximate circulation required for a pond in Australia using average calculations.

When making the in a higher place calculations we have taken into business relationship boilerplate Australian climate, average swimming plants, average pond depth (on the shallow side), flow loss through a filter etc. These circumstances may vary depending on the specifics of your pond and this chart should be used equally a guide but, not a guarantee.

Special note:

Delight employ this chart as shut guide only, the just way to exactly choose a pump and filter is by using all your specific and exact factors, the higher up if used correctly should go you lot within 10 - 15% of a perfect issue. In uncertainty either fill in ane of our electronic mail help forms or call 1800 607 388.