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Choosing your pump
For both AquaFlo / Aqua Acrylic spillways


PUMPS: How to choose : A projecting sheet spillway requires a flow of at least 700 Litres per hour for every 100 mm of spillway width. While a sheet descent sheet spillway requires a flow of at least 350 Litres per hour for every 100 mm of spillway width. This flow rate is measured at the spillway, therefore in choosing the pump, the distance* between the surface of the water and the spillway is a factor that only you will know.  We have therefore made a number of suggestions below based on about 1.0m mounting, covering a variety of price points. The (list starts with the best quality and works right).  *The higher the water is being pumped, the larger the pump must be, also on 2 and 3 inlet spillways the flow must be higher because of the tee that is required in the plumbing.

Please read the hints section at bottom of page


Potential pond pumps*
When used as a sheet descent (softly down the wall)
Spillway
length
Min flow rate required at the spillway -
litres per hour
Pump
Location
*Based on about 1000 mm mounting height**
**Head, the distance between the top of the water in the pond and the mounting height of the spillway.
300 1,050 Inside pond Pondmate 2400 Laguna Maxflo 3500  Oase Neptun 2000
Outside pond Pondmate 2400    Oase Neptun 2000
600 2.100 Inside pond Pondmate 3500  Oase Neptun 3000
Outside pond Pondmate 3500   Oase Neptun 3000
900 3,150 Inside pond Pondmate 4800  Laguna Maxflo 6000  Oase Neptun 4000
Outside pond Pondmate 4800   Oase Neptun 4000
1200 4,200 Inside pond Pondmate 6000DWP
Outside pond Pondmate 6000DWP
1500 5,250 Inside pond Pondmate 6000DWP  Laguna Maxflo 7500**  Oase Neptun 6000  
Outside pond Pondmate 6000DWP   Oase Neptun 6000
1800 6,300 Inside pond Pondmate 8000DWP  Laguna Maxflo 9000**  Oase Neptun 9000
Outside pond Pondmate 8000DWP  Oase Neptun 9000
2400 8,400 Inside pond Pondmate 10000DWP  Laguna Maxflo 11000**   Oase Neptun 9000
Outside pond Pondmate 10000DWP   Oase Neptun 9000


Potential pond pumps* When used as a Projecting sheet (sheer descent)
(not touching the wall)

Spillway length Min flow rate required at the spillway -
litres per hour
Pump
Location
*Based on about 900mm mounting height**
**Head, the distance between the top of the water in the pond and the mounting height of the spillway.
***Remember the Aqua Acrylic has an internal head pressure of 3 metres
300 2,100 Inside pond Pondmate 6000DWP  Oase Neptun 6000
Outside pond Pondmate 6000DWP  Oase Neptun 6000
600 4,200 Inside pond Pondmate 8000DWP  Laguna Maxflo 11000  Oase Neptun 9000
Outside pond Pondmate 8000DWP  Oase Neptun 9000
900 6,300 Inside pond Pondmate 10000DWP  Laguna Maxflo 16000   Oase Neptun 12000
Outside pond Pondmate 10000DWP   Oase Neptun 12000
1200 8,400 Inside pond Pondmate 18000DWP  Oase Neptun 12000
Outside pond Pondmate 18000DWP   Oase Neptun 9000
1500 10,500 Inside pond Pondmate 18000DWP   Oase Neptun 12000
Outside pond Pondmate 18000DWP
1800 15,300 Inside pond Pondmate 28000DWP  
Outside pond Pondmate 28000DWP
2400 16,800 Inside pond Oase Profinaut 27
Outside pond Oase Profinaut 27

 

Aussie says

Aussie says

**Head, the distance between the top of the water in the pond and the mounting height of the spillway. 

Tip 1: If being used as a projecting sheet effect, never mount higher that 900mm above the water. The further the water drops, the narrower it becomes due to surface tension. The drop in the photo's above is 0.9m to give you an idea. Another way to understand this tapering effect is that for every 50cm of drop, the width of the sheet of water narrows by about 100 mm. After about 90cm of drop the sheet starts to break up.

Hint 2: Any elbows or tees in the system will reduce flow.

Hint 3:  Glass .. When water is run down glass, to improve water flow and maintain it's full width you should angle the wall between 2 to 5 degrees

Hint 4:  Acrylic .. When water is run down Acrylic, to improve water flow and maintain it's full width you should angle the wall between 5 to 7 degrees

Hint 5: How to neatly get the electrical cable from the pump and the water tube out of the pond cleanly and allow for service. Click here