Eheim Submersible Pump ON Compact 300

Suitable for bird baths and small fountains.

Specifications:

Cable length: 200cm
Measures: 38mm W x 72mm H x 62mm D
Hose Diameter: Pressure side 12mm
Head Height: 60cm
Max Flow: 300 lph

PLEASE NOTE: Under the consumer guarantees act if this electrical product is altered in any way this will void all warranties. We will allow the item to be hard wired into place provided that all works are carried out by a Registered Electrician. If the item needs to be returned to us under warranty for repair or replacement a replacement plug must be attached prior to returning the item along with a copy of the Electricians Certificate of Compliance.

Help to work out the size of pump you need due to the head height:

here are two areas to consider for head height, you add these two distances together – Vertical lift & Dynamic head.

TO CALCULATE VERTICAL LIFT.

Measure the vertical distance from the surface of the pond water, to the point at which the water enters the top of the watercourse.

TO CALCULATE TOTAL DYNAMIC HEAD.

Other information required to calculate the Total Dynamic Head (TDH) includes the length and diameter of the pipe leading from the pump to the outlet at the top of the watercourse.

• For every 1m of pipe is equivalent to 10cm of head height.
• For every 1 size hose diameter reduced from the maximum outlet diameter of the pump is equivalent to 1m of head height.
• For every 90 degree bend in the hose is equivalent to 1m head height.
• For every 45 degree bend in the hose is equivalent to 50cm of head height.