WATERCOURSE pump selection charts.

Which pump is right for your waterfall or stream? You need just 2 measurments, the waterfall width and the vertical height.

These charts serve as recommendations for selecting the right pump for your watercourse (average watercourse application). In these calculations approx. 5 metres of a 1½" hose are used (with a pressure loss of approx. 0.15 head height).

Here is a rule of thumb for choosing the correct pump for a waterfall or stream
Width of watercourse in cm x 1.5 litres / minute = Pump Flow Rate required in litres per minute.

so the wider your stream or waterfall, the larger pump flow rate required

Eg 50cm wide waterfall will require flow rate of 50 X 1.5 = 75 litres per hour required at the correct height.

Example: using the above chart with can use Aquamax Eco Classic 8500 pump for a waterfall width of 800mm at 500mm head height.

Example: using the above chart with can use Aquamax Eco Premium 12,000 pump for a waterfall width of 800mm at 1,500mm head height.

Example: using the above chart with can use an Aquamax Eco Twin 30,000 for a waterfall width of 800mm at 3,500mm head height or the same pump for a waterfall 2,200mm wide at 1,000mm head height.

Example: using the above chart with can use Oase Aquamax Eco Expert 44,000 pump for a waterfall width of 4m at 1m head height.