Page 14 - Australian Pork Newspaper
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Piggery reduces both maintenance time and costs with new wastewater pumps
MIDWEST Piggery has been breeding pigs for over 30 years.
A mid-size enterprise, the piggery raises the ani- mals and then sells them to market.
As part of the piggery’s recycling philosophy, all pig waste is collected and broken down before being used as fertiliser on the grounds.
Midwest Piggery princi- pal partner and manager Mat Collier said, “We col- lect the pig waste in what we call sump pits.”
“The effluent is then pumped from the sump up to a holding dam.
“It then moves progres-
sively through a series of dams before the effluent is eventually ready for use as a fertiliser.”
To move the pig waste from the sump to the hold- ing dam, the piggery was using three market-lead- ing, helical rotor pumps (also known as progres- sive cavity pumps).
Located at ground level and attached to a suc- tion lift, the pumps were proving increasingly inef- ficient and costly to main- tain.
“After we bought the helical rotor pumps we quickly discovered they have a very fine toler- ance,” Mat said.
“The suction hose start- ed to block continuously and if the pumps ran dry, the motor would burn out and the rubber stator melted.
“Not only did we have to remove the choke, we had to replace the sta- tor, which was incredibly awkward and frustrating.
“Getting to the stator is difficult enough, and then we had to literally peel away the melted rub- ber that had stuck to the equipment.
Every time we had to clear the choke and re- place the stator it took a good three to four hours of our precious time.”
The process not only proved time intensive, it was also very costly.
According to Mat, a new stator costs about $1000 and because the pumps were choking and burn- ing out with increasing regularity, the cost to re- place the stator was also growing.
In one year alone, the piggery had spent about $10,000 on new stators.
Fed up and frustrated with the helical pumps, Mat started to search for a far more efficient solu- tion.
Coincidentally, Mat’s father-in-law had just read an article on Hydro Inno- vations and the Gorman- Rupp pumps the company supplies and drew Mat’s attention to it.
After reading it, what particularly appealed to Mat was the fact Hydro Innovations was happy to provide prospective cus- tomers with a trial period.
“Having paid and used a series of pumps includ- ing submersible ones in the past, I didn’t want to spend any more money on pumps that could not do the job,” Mat said.
“So coming across a supplier who was happy to let the pump prove it- self before I bought it was great.”
After reviewing the pig- gery’s requirements, Hy- dro Innovations suggested Mat install a Gorman- Rupp T2A3-B wastewater pump fitted with a 4kW motor – a compact model that would provide both the flow and pressure Mat needed.
According to Hydro In- novations general manag- er Garry Grant, the Gor- man-Rupp T2A3-B is a rugged, self-priming cen- trifugal solids-handling pump.
Very easy to maintain, the pump has an exter- nal flap valve that can be removed and inspected without the inconvenience of disconnecting the pip- ing or draining the pump casing.
In addition, if any chok- ing does occur, the pump can be easily and quickly unclogged via the remov- able cover plate.
The design of the pump also allows users to adjust the clearance externally to ensure optimum per- formance without having to pull it apart.
The removable rotating assembly lets the shaft be inspected or replaced by simply loosening four bolts from the drive end of the pump, eliminating the need to disturb the pump casing or piping.
Garry was more than happy to have Mat trial the pump for 90 days, but within 60 days Mat was convinced the Gorman- Rupp T2A3-B could ef- fectively do the job and bought the pump.
“Within two months of having the pump installed at the piggery I knew it was capable,” Mat said.
“It moves more liquid than the previous pump and it’s extremely easy to maintain, which for me is the major bonus.
“The open impeller de- sign makes it very simple to remove any blockages.
“I only have to loosen two bolts to get inside the pump and clear it, which takes just 15 minutes.
“And of course, an add- ed bonus is we no longer have to waste money buy- ing stators.”
So impressed was Mat with the performance of the Gorman-Rupp T2A3- B that he bought a second pump and is now consid- ering a third.
“It’s great to see there are still suppliers out there who will stand behind their products and let you trial them before buying,” Mat said.
“If Hydro Innovations hadn’t let me trial the pump I doubt I would have bought it up front because I have been burnt so many times before.
“After all my negative experiences, the Gorman- Rupp T2A3-B is far more than I hoped for.”
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Page 14 – Australian Pork Newspaper, July 2018

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