Marley Twist: compact rain diverter - Cladding and Roofing NZ
Marley Twist: compact rain diverter

Marley Twist: compact rain diverter

Nifty DIY product collects rainwater from your roof; reduces pressure on stormwater

Words by ArchiPro Editorial Team

Widespread water shortages have seen savvy Kiwis giving a big thumbs up to Marley’s Twist®, a compact rain diverter that captures water from the roof via a downpipe.

It has been so popular since the company launched the product in 2017, that Marley has had to ramp up production to keep up with demand.

Senior Product Manager Nigel Montgomery says Twist started out as a niche market product for the environmentally conscious to conserve rainwater.

“But awareness has taken off and it has almost become an everyday necessity as people are using it to water the garden and even wash the car.

“For a lot of architects and building designers especially, sustainability is a big issue. The increase in medium-density housing has put pressure on stormwater systems, which is where Twist and its stablemate Curve come in. Twist captures some rainwater so you don’t lose it all down the stormwater system, allowing it to be used elsewhere.”

Marley Twist® on a rainwater tank

The Marley Curve, is a leaf diverter that prevents leaves and debris going into stormwater systems and tanks, reducing sediment build up and the risk of blockage. Like Curve, Twist fits easily into an 80mm PVC downpipe. A simple “twist” on-off control lets you divert rainwater through a standard hose fitting into a holding vessel or tank.

The freely sourced water can then be used on gardens, to clean the car, top up fishponds or swimming pools or any other non-potable application. “Both products were styled for use in urban environments,” says Nigel. “In places like Auckland, where there is a large population, high demand and a lot of uncertainty around supply, people pay a lot for their water. Installing Twist makes good sense both financially and sustainably.”

Worth noting, explains Nigel, is that following Auckland’s water restrictions, which came into place back in May and could be in place until mid-2021, the Council requirement to get a building consent for smaller tanks has been relaxed. People are now free to catch supplementary water from the roof in a variety of tank sizes, a move that has further contributed to the uptake of Twist.

“In Wellington, the council has subsidised a small-tank programme where ratepayers are encouraged to divert water for emergencies. They have been very forward thinking in this respect.”

Marley CURVE™ Leaf Diverter

Both the Marley Curve and Twist were designed for the DIY market, so they are very easy to install and use. Both products come with a stick-on cutting template and two downpipe clips. You can stick the template on the downpipe where you want the Twist to go. One key thing is to make sure the spigot outlet is higher than the inlet to the tank so that gravity can do its work.

The clips are used to first strengthen the downpipe 200 mm above and below the cut lines. After cutting through the pipe with a PVC or fine-tooth saw, you simply slide the Twist upper and lower body in and twist them together. No glue is required. It takes about 15 minutes, or you can get your plumber to do it in much less.

Once installed, you should periodically slide up the top housing to remove the in-built filter and rinse it to get rid of any leaves.

“It’s a very innovative, quirky little product,” says Nigel. “Which is why it won The Master Plumbers’ Product of the Year award in 2018.”

Like all Marley rainwater systems, the UV-resistant, PVC product carries a 15-year guarantee and has no metal parts that can rust or corrode. It is 100 per cent recyclable, low maintenance and comes in white plus five colours to match the Marley Stratus Design Series® range.

Marley has a local innovation team that works on product development specifically for the New Zealand market. Check Marley to find out more about the innovative Twist and Curve.

Marley Twist® on a repurposed wine barrel
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