Key Contacts

MarkGeneral Manager
Andrew Donald
Andrew DonaldAdministration Manager
Andrew joined Grafton Irrigation in February 2021 after a 30-year career in the Banking Industry and 3 years of Finance and Administration for a local Plumbing firm. Although born & bred in Timaru Andrew worked in Greymouth, Cromwell, Ashburton and Christchurch before returning to Timaru in 1994.
Outside work Andrew is a keen golfer who plays off a 2 handicap.

03 687 1234

Colin Bird
Colin BirdRepairs & Maintenance Supervisor
Colin has had water meter training with ABB, Krone and Siemens. He was born in Zimbabwe and immigrated to New Zealand in 2002. Colin spent 13 years in irrigation and joined Grafton in 2010. He spent four years with ECAN in the water metering space. Colin is a keen fisherman and outdoor bowler.

Johnny Grumball
Johnny GrumballOamaru Field Manager
Johnny is a Fitter/Welder by trade and has spent over 15 years of Irrigation Engineering. He was an Engineer at Wallace and Cooper and Maintenance Engineer at Fairlie Wool Scour prior to joining Grafton Irrigation in 2012.

JacoPivot Technician/Specialist
Jaco has been in the irrigation industry for 10 years, he has a range of training and experience, specialising in VRI and Pivot Troubleshooting. Jaco’s training includes irrigation system performance asssessment , specialised system training in the USA and is currently working towards his certificate in irrigation design. In his spare time Jaco likes playing Golf and enjoys having a good old BBQ (in Afrikaans “BRAAI”).

Rassie Erasmus
Rassie ErasmusDesigner

Timaru office


143 Hilton Highway, Washdyke

PO BOX 3031, Timaru, 7943

Ph: 03 687 1234
Fax: 03 688 3927

Glenavy office


14 Innes St, Glenavy

Ph: 03 689 3806

Oamaru office


23 Chelmers St

Ph: 027 488 2097