Friday, 09 July 2021 09:55

Pondstir living up to its name

Written by  Mark Daniel
Causing a stir…….Pondstir is a heavy-duty, shore-based stirrer designed to mix and mix the liquid and solid factions of effluent ponds or storage towers. Causing a stir…….Pondstir is a heavy-duty, shore-based stirrer designed to mix and mix the liquid and solid factions of effluent ponds or storage towers.

The Pondstir from Dannevirke-based Metalform, as its name suggests, is a heavy-duty, shore-based stirrer designed to agitate and incorporate the liquid and solid factions of effluent ponds or storage towers.

The result is a homogenous mix that cna be moved efficiently by effluent pumps or vacuum tankers.

Built extensively from high-grade galvanised steel, the design features a triangular pedestal that is bolted to a concrete pad at the edge of the pond. Cleverly, the unit is supplied with pre-formed ground anchor boxing forms of a 2 cubic metre capacity, needing a flat level site and the obligatory load of around 5 tonnes concrete.

A deep, square-section support tube, of 10 metre or 12.5 metre length, carries a large propeller, surrounded by a heavy-duty shroud, not unlike an empty oil drum with sloping sides. The interaction between the propeller and the shroud is designed to increase the velocity of the liquid, while at the same time creating a vortex that keeps solids in suspension, and helps reduce the build-up of silted areas within the pond.

Depth control and operating angle is achieved using an integral foot at the business-end of the machine, alongside a chain/racket system at the pedestal. As part of the design, the impellor is driven by a 4 or 7.5kW motor housed in a fully sealed unit at the working end, removing the need for a complicated driveline associated with shore-mounted power plants.

The manufacturer suggests that the ease of installation, combined with superior performance and minimal servicing requirements, makes effluent agitation a cost-effective solution on most farms given the $15,000 - $20,000 price tag, depending on specification.

More like this

Calf feeding boost

Advantage Plastics says it is revolutionising calf meal storage and handling, making farm life easier, safer, and more efficient this season.

JD's precision essentials

Farmers across New Zealand are renowned for their productivity and efficiency, always wanting to do more with less, while getting the most from each pass of the paddock.

Kioti carves out a miracle among the big boys

Distributed by Power Farming Group, the Kioti tractor brand has carved a niche for itself over the past two decades by offering productive, reliable and well- priced machines in the sub-compact, compact and agricultural utility sectors, from 22 to 115hp.

Featured

LIC Space folds for good

Farmer co-operative LIC has closed its satellite-backed pasture measurement platform – Space.

Editorial: Time for common sense

OPINION: The case of four Canterbury high country stations facing costly and complex consent hearing processes highlights the dilemma facing the farming sector as the country transitions into a replacement for the Resource Management Act (RMA).

National

DairyNZ Farmers Forum underway

Over 300 farmers and rural professionals have gathered in Hamilton for the first DairyNZ Farmers Forum for this year.

Machinery & Products

Shearing legend hooked on CanAm

Sir David Fagan, world-renowned competitive sheep shearer with 642 shearing titles worldwide and a knighthood to his name, now runs…

50 years of tractor pull

This year, the Fieldays Tractor Pull, in association with PTS Logistics, mark a major milestone – 50 years of crowd-thrilling…

The Wrangler's birthday bash

It's the Wrangler Limited’s 30th birthday and to celebrate the milestone a prototype of the E Series Wrangler - a…

» Latest Print Issues Online

Milking It

Free speech

OPINION: The Free Speech Union is taking this one too far.

Drug survey

OPINION: New national data from The Drug Detection Agency (TDDA), a leading workplace drug tester, shows methamphetamine (meth) use is…

» Connect with Dairy News

» eNewsletter

Subscribe to our weekly newsletter