Mostly industrial and commercial premises, including the Highbrook business park, next to fast-growing residential neighbourhoods. Rainwater tanks do two very different jobs in Auckland. In the city, they cut demand on the mains for gardens, toilets and laundry, and help during summer water restrictions. On lifestyle blocks and islands without a reticulated supply, the tank is the water supply, and it has to be reliable and safe to drink. We supply and install water tanks across Auckland: we help you pick the size and material, set the base, and plumb in the pump, first-flush diverter, filters and overflow so the tank works from day one.
Rainwater harvesting for East Tāmaki and Highbrook industrial sites
East Tāmaki is mostly industrial and commercial premises, including the large Highbrook business park on the eastern shore of the Tāmaki River. Warehouse and factory roofs here can be very large, which means a lot of water during Auckland's heavy rain. For businesses, a rainwater tank is a way to reuse that water for toilet flushing, vehicle and yard wash-down, landscape watering and some process uses, and to reduce the amount drawn from the town supply. We also ask how much water the business actually uses in a week, because a tank sized only to the roof can sit full while the site keeps drawing from the mains.
Commercial tank projects work differently from domestic ones. Where tank water feeds toilets or any internal fixture, the plumbing has to be done by licensed plumbers and normally needs consent. Any mains top-up or changeover needs backflow protection appropriate to the site's risk, and boundary devices on commercial properties are tested annually. We design the tank connection so it fits with the backflow arrangements already on site, rather than adding a new risk.
The ground needs thought too. Significant parts of East Tāmaki are formed from basalt tuff and lava flows, part of the East Tāmaki volcanic area. That gives a solid base for above-ground tanks, but it can make excavation for buried tanks or long pipe trenches slow and costly. On larger sites, routing pipes along existing service corridors or above ground on brackets can be the better option.
Next to the industrial land are fast-growing residential streets, where tanks are usually for gardens and laundries on smaller sections. For both homes and businesses we start with a site visit, look at the roof area, the use and the space available, then give a fixed price before anything is ordered.
Local tip: For a Highbrook or East Tāmaki warehouse, plan the tank around the existing backflow device so the upgrade does not create a second compliance item to test.
For anything else, see our plumbers in East Tāmaki.
Pricing: quotes are free, and every job gets a fixed price before we start, so there are no surprises on the invoice.
Water Tanks Jobs We Do in East Tāmaki
- Tank top-up valves
- Rainwater tank installation
Water Tanks East Tāmaki FAQs
Can rainwater from our East Tāmaki warehouse roof be used to flush toilets?
Yes. It needs a pump, filtration suited to the use, licensed plumbing and usually consent, with backflow protection on any mains top-up. We check the site and the compliance steps before quoting.
Do I need backflow protection if my tank has a mains top-up?
Yes. Any connection between a tank and the mains needs the right backflow protection to protect the public supply.
Can I drink rainwater from my tank?
It can be made safe with good roof and tank maintenance, a first-flush diverter, filtration and UV treatment.