A centre pivot irrigator at a private farm near Horrellville in Canterbury malfunctioned last week, requiring an extremely urgent response from our vacuuming specialists at HydroVac. The malfunction caused an effluent spill into the irrigation and stock water race, causing possible contamination to water supplies. To mitigate the amount of contamination, HydroVac was called in for emergency response. Our skilled team spent two days vacuuming effluent from the irrigation pond and
Expert tips on how to look after your wastewater system
As well as cleaning your filter on a monthly basis, here are some other tips to looking after your septic system: Do not use bleaches or chlorine (e.g. Napisan, Janola)These products are designed to kill bugs and will kill off the bacteria in the tank, causing smells and blocked filters. Do not put fats or oils down drainsThese may block the tank filters and kill the bacteria in the tank. Do not put tea leaves or coffee grounds down drainsThese may block the filters in the
HydroVac on the Christchurch Northern Corridor project
For the past few years, HydroVac's South Island team have been working with the Christchurch Northern Corridor Alliance (CNC) on the build of the Transport Agency's Northern Arterial - a new section of State Highway 74. The CNC is the first alliance contract of this size in the South Island. It is an alliance between the NZ Transport Agency, Christchurch City Council, Fulton Hogan, Aurecon and Jacobs. Hydrovac have been providing hydo- and air-excavation services to locate services along
Our work with Christchurch City Council
In their efforts to move away from the need for chlorination in Christchurch town supply, the Christchurch Council are renewing 100+ of the city's water supply wells. In order for groundwater to be provided without the need for treatment such as chlorination, well heads need to be at a certain standard. This upgrade work will mean wells will meet the standard and temporary chlorination can stop at that pump station. In Christchurch there are 104 wells with below-ground well heads and 36
How HydroVac used innovation to help Auckland Motorways
The problem: Stormwater slots and grated trench drains are commonly used to collect runoff from a road surface, ensuring optimal performance and reducing the risk of unsafe surface flooding. However, they produce a MO challenge: it's time-consuming to remove and reinstate the grates for high-pressure hydro-jet flushing, plus they cause unsafe flying debris. To manage the jet spray, a half barrel was dragged by rope over the drain while flushing - a clumsy and cumbersome practice. The
Cutting edge technology: dry excavation
As part of our ethos to stay at the forefront of our industry through pioneering new technology and techniques, we were the first company in New Zealand to invest in Dry X Air Excavation trucks. Using the latest technology from Germany, these trucks use powerful airflow instead of water. Though it was a substantial investment to purchase these trucks, the substantial benefits to both clients and HydroVac make it worthwhile: Because air is used, any excavated material remains dry which