Rangiora is the largest town and seat of the Waimakariri District, with about 7,700 dwellings at the 2023 census. Its population grew by about 25 percent between the 2013 and 2023 censuses, and growth since the mid-2000s, especially after the 2011 earthquake, pushed the town's primary schools towards capacity, so Te Matauru Primary opened in January 2020. Rainwater tanks do two very different jobs around Christchurch. In town, they take pressure off the council supply for gardens, toilets and laundry, and help through dry summers. On Banks Peninsula and rural properties on a restricted supply, a tank is part of how the house gets water at all, and it has to be reliable and safe. We supply and install water tanks across Christchurch: 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 tanks in Rangiora: restricted rural supplies and dry summers
Rangiora's town houses are on Waimakariri District Council's supply, but many properties on the edges and in the surrounding rural area are on restricted supplies. On those, water trickles through a restrictor into a property tank, and the household draws from the tank. Tampering with the restrictor is chargeable, so the tank has to be sized to cover peak use between refills, especially in a hot summer.
Those summers can be very hot. Rangiora holds New Zealand's highest official temperature, 42.4 degrees in 1973, and nor'west days dry out gardens fast. A rainwater tank alongside the restricted supply tank adds storage for the garden and outdoor use, so the drinking water tank is not drawn down by watering. For town properties, a garden tank cuts reliance on the council supply in dry spells.
Winters bring frost. July averages a low of 0.6 degrees, and tank pumps, valves and exposed pipe can freeze. We fit pumps in insulated housings, bury pipe where we can and show you how to protect the system in a cold snap. A tank base must be level and compacted, because a full tank is heavy and a settling base stresses connections.
If you use tank water for drinking, keeping it safe is your responsibility. We fit filtration and UV treatment where needed, along with leaf screens and a first flush diverter. On restricted supplies, backflow prevention may be required at the boundary for farming or other non domestic use. We size each tank from your roof area, household use and any stock or garden demand.
Older homes near the town centre often have galvanised spouting that sheds rust into the water, so we check gutters and downpipes before connecting a tank and suggest replacing any sections that are past their best. For lifestyle blocks, we also allow for stock troughs.
Local tip: On a Rangiora restricted supply, size your storage tank for a hot week in January, not an average day.
For anything else, see our plumbers in Rangiora.
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 Rangiora
- Tank top-up valves
- Rainwater tank installation
Water Tanks Rangiora FAQs
Can I add a rainwater tank to my Rangiora restricted supply property?
Yes. A separate rainwater tank for the garden reduces demand on your restricted supply tank. We size and connect it so the two systems do not mix.
Do I need backflow protection if my tank has a mains top-up?
Yes. Any connection between a tank and the council supply needs backflow protection so tank water cannot flow back into the main.
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.