Pumps

Effluent Pumps

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The majority of effluent pumps are designed to pump solids up to 10% and normally have an open impellor. They come in different sizes depending on the required volume and head. They start at 5 to 35 horsepower or as high a head as required. The open impellor pump is primarily used to run such applicators as the Larall Smart Hydrant, Rain guns, Spitfire Irrigator and Traveling irrigators or pretty much any thing with a larger nozzle that say 10mm.

The open impellor pumps are also used as transfer pumps for effluent containing solids. This includes feeding mechanical separators, transferring from sump to ponds and vise versa. Transfer pump are usually high volume, low pressure.

With the introduction of Low Application Rate systems where solids have to be removed such as Irri-Pod, K-Line and Larall, the closed impellor pressure pump can be used. These pumps are usually used to pump water. The closed impellor pump will produce a greater volume per hour that the equivalent size closed impellor making them more efficient.

There are four different types of effluent pumps.

1. Long Shaft (open impellor)
2. Short Shaft (open impellor)
3. Submersible (open impellor)
4. Shore Mounted (open impellor and closed impellor)

The main open impellor effluent pump brands are Doda, Gillies, Numedic and Reid & Harrison. There are many closed impellor pumps. Some brands are Davies, Gillies, Grunfos and Lowara.