Water Tanks North Christchurch

Rainwater tanks in North Christchurch: frost, swamp ground and summer watering

North Christchurch homes are on the council supply, but a rainwater tank still earns its place. Papanui, Bishopdale and Redwood have established sections with gardens that need water through dry summers, and Christchurch households pay extra for use above a daily allowance. Northwood and Belfast's newer homes often have room beside the garage for a slimline tank that captures roof water for the garden and car.

The north west of the city gets some of the coldest nights in Christchurch, with the airport averaging about 50 nights below freezing a year. Exposed tank pumps, outlet valves and the pipe from tank to tap can freeze and split. We fit pumps in insulated housings, lag exposed pipe and show you how to drain the pump and lines before the hardest frosts.

Redwood began as raupō swamp, drained for farming, so groundwater can sit high in places. That favours above ground tanks on a well compacted base, rather than underground tanks that can float when the ground is wet. In Bishopdale and Papanui, many homes from the 1960s and 1970s have older spouting and downpipes, and we check those before connecting a tank, because a leaking downpipe wastes water before it reaches it.

If you plan to use tank water inside, for toilets or laundry, we fit a pump, a top up valve from the town supply and a backflow device that keeps the supplies apart. For garden use only, a simple tank with a tap or small pump is usually enough. Leaf screens and a first flush diverter come as standard, and connect the overflow to the stormwater system so heavy rain does not flood the section. Belfast's industrial sites sometimes collect roof water for washdown, which we size separately.

Local tip: In Bishopdale or Redwood, have your downpipes checked before connecting a tank, because older spouting often leaks before the water reaches the tank.