CST Group Ltd is family-owned company based in the Waikato that has been operating since the 1990's. We operate three divisions within CST Group – CST Water, CST Septic and CST Industrial.CST Industrial provides hydro excavation, CCTV pipe inspections and drain cleaning/unblocking. CST Water provides water cartage services through the Waikato. We have several water cartage trucks available for hire. These are often used when installing new water mains - for pressure testing and flushing the lines. As well as filling new water tanks after installation. If you need a temporary water supply at a construction site, we have water tanks available for hire. These come delivered with a load of water and a pump.CST Septic services all your liquid waste – our range of vacuum trucks allows us to service most domestic and commercial jobs. We can provide vacuum trucks for bulk waste removal, septic tank cleaning and sucking drilling mud.