On Waiheke Island, your rainwater system isn’t just a utility — it’s your lifeline. With local homes relying entirely on roof-collected rainwater, maintaining the full harvesting-to-tap system is critical, particularly during the dry summer months. Tankman are Waiheke Island’s rainwater system experts, and we make rainwater safe to drink for you and your family. 1. The Maintenance Checklist Your system has three key parts: Collection, Storage, and Delivery . Collection (Roof & Gutters)  Clear gutters twice a year, ideally in spring and autumn. Leaves, bird droppings, and overhanging trees are the most common causes of “swampy” smelling water. First-flush diverters should be checked every 2–3 months to ensure the slow-release valve isn’t blocked by silt. Always check tank inlet screens — even small holes can let in mosquitoes or rodents. Storage (The Tank)  Every 2–3 years, check the bottom of your tank for sludge. If sediment exceeds 5cm, it’s time for a professional de-sludge, usually done by vacuum so the tank doesn’t need emptying. Green algae is a sign that light is getting in — rainwater tanks must remain completely dark. Delivery (Pump & Filtration)  Most Waiheke homes use dual-stage filtration. Filters should be replaced every 6–12 months, or sooner if water pressure drops. UV steriliser bulbs also need annual replacement, even if they still appear to be working. 2. When to Call Tankman Persistent low pressure, pump cycling, murky water, or water quality concerns should be handled by professionals. With all jobs big or small we offer a full site holistic report that highlights potential water system weaknesses that addresses priority tasks with timelines. Tankman offers FIXED PRICE • NO SURPRISES • FRIENDLY ADVICE • RELIABLE SERVICE, keeping Waiheke homes water-secure all year-round. 116 Ostend Road (next to Waiheke Workout) (09) 372 7270 www.tankman.co.nz @tankmannz - Facebook

Brown or dirty tank water is most often caused by tannins—the natural compounds released when rainwater mixes with decaying leaves, pollen, and vegetation. On Waiheke, this becomes particularly problematic during pōhutukawa flowering season, when the stunning red stamens shed heavily across rooftops. As beautiful as they are, they are one of the biggest culprits behind tea-coloured water, bitter tastes, unpleasant odours, and staining on spas, sinks, and toilets. Left untreated, tannin-rich water can cause residual damage to washing machines, clogging internal parts and leaving clothes less clean with every wash. Potentially, it’s the kind of slow, hidden deterioration that can lead to costly repairs—and it’s certainly not something you want your family or summer guests to experience. Your trusted solutions:   Option 1:   Book a Tank Clean & Drain with a 10,000L water refill.  Often with tannin polluted tanks the dirty water is too hard to treat. Instead we vacuum sludge & residue from the bottom of your tank, draining all the bad water then deliver 10,000 litres of water to give you a fresh start. Option 2:  Install a Tannin Reduction Cartridge beside your sediment filter. The Purtec TR20MP2 Tannin Reduction Cartridge is designed specifically to remove tannins from your water. It works using a special ion-exchange resin that pulls out the tea-coloured stains and improves taste and smell. Because it targets tannins only, it’s best installed as part of a two or three-stage filtration system. This means: Sediment filter first — to remove dirt and debris so the tannin cartridge doesn’t clog early. Tannin cartridge next — to remove the colour. Carbon filter last — to polish the water and reduce any remaining taste or odour. Our local Tankman experts can assess your system and advise which option will work best for your Waiheke home. Depending on the quality of your tank water a combination may be needed to restore clean, safe, clear water. (09) 372 7270 www.tankman.co.nz Corner of 116 Ostend Road (next to Waiheke Workout)

Gulf News, 2 October 2025 Tankman creates solution to very Waiheke-specific problem. A frustrating reality on Waiheke is we often get hit with rough weather and power cuts, which mess with our water tank pumps and can leave us without running water. Tankman Waiheke co-director Marty Howard says he figured that was a solvable problem. And after a year and half of noodling, prototyping and testing created PumpPal - a water pump system with a backup battery that automatically kicks in when power is interrupted. Marty says he had always known it was an issue but didn't know the full impact it had on people until he and Duncan Styles bought Tankman from the previous owners a few years ago. "The problem struck me between the eyes as soon as I got on the job," he says. "You've got people climbing up ladders to get a bucket of water out the top of their tank, in the middle of a storm - just so they can tip it down the dunny." Hospitality businesses and schools must close because they have no running water and the toilets aren't working. In many island homes, similar problems occur, and they don't always end when the power comes back on. Marty says standard pumps are sensitive to power fluctuations. Often it's just a case of having to go turn the pump off and on to get water flowing again, "but sometimes the pump's damaged and doesn't come back on," he says. "It has an error or a meltdown and people need us to come around and do something to fix it. Sometimes the pump loses its prime, and we have to come and bleed the air out of the line if it has been off for too long and their system is configured a certain way." Marty says he originally trained as an electrical engineer, so he took on finding a solution to the problem as a side project. In his research he couldn't find a backup power system and pump unit out there that was right for Waiheke - so he decided to make one. "Through testing I quickly concluded that the normal pumps use too much power anyway. The bog-standard pumps just go on full bore or turn off, and if you're just running one tap you don't need that." However, Marty says, variable speed pumps which used to be too expensive for home systems have become more affordable. "These new kinds of variable speed pumps also use 40 to 70 percent less power - so that's off your power bill for a start. And that brings it in the range of being able to run it off some [onboard] power supply for a decent length of time." The final PumpPal model uses a battery pack that will keep water flowing for at least 24 hours without external power and automatically switches to battery power within a millisecond of a power cut. "Obviously, if there's a power cut, you're probably not going to be running the washing machine or dishwasher, but you'll probably want to have showers, get a drink, wash your hands and so on," he says. "And with careful water use, it will last a lot longer." Marty says hospitality businesses and schools can also benefit from his invention, just with a bigger battery. For further information, sales and trade enquiries phone Marty on +64 9 372 7270 www.tankman.co.nz or pop into the Tankman showroom - 116 Ostend Road, Waiheke Island. #tankmanwaiheke #waterpump #tankman #offrgridliving #waihekewater

Waiheke Power Outage? No Problem! Get continuous water with PUMPPAL Waiheke power outage? No problem! Keep your water on during power cuts When mains power fails, PumpPal automatically runs your pump from battery, keeping taps flowing and toilets flushing. seamlessly integrates with the Grundfos SCALA2 booster pump or the PumpPal RUC-750 booster pump. Automatic switchover Outage detected → battery on. Power returns → battery recharges. Up to 24 hours runtime* Conservative household use during extended outages. Drop‑in cabinet Weather‑resistant enclosure suitable for outdoor or under‑house placement. Enquire Now More information PumpPal gives you a dependable off-grid water supply. Call us - 09 372 7270 or enquire below (Trade/Plumber enquiries also welcome) First name Last name Mobile Number Email* Interested In General Question How can we help you?* Submit PUMPPAL Power Pack (already have my SCALA2 or RUC-750 Pump) Note: Using with other pumps will damage equipment Includes Water proof, Rodent and Dust Proof Cover with battery and Pumppal controller installed inside. Essential for warranty if installing under a house in a damp or dirty environment $1,395 PumpPal Full Package - Includes RUC-750 Pump Price $2,395.00 New Product PUMPPAL RUC-750 Price $1,150.00 New Product PUMPPAL Full Package including matched Grundfos Scala2 Pump Price $2,995.00 Battery Grundfos Pump SCALA2 3-45 Price $1,884.00

Keep all the nasty bird dropping bacteria out of your house with water treatment filters, filter systems & UV purification. Quick View New Arrival TEST KIT BACTERIA - Bacteria in Water Test Kit (Safe Home®) Price $29.95 Quick View New Arrival Puretec 10" Whole House Dual Filter + UV System Price $1,995.00 Quick View New Arrival Puretec Hybrid G8 UV - Dual Filter 10" + UV Price $2,934.00 Quick View New Arrival Puretec Hybrid G12 UV - Triple Filter 10" + UV Price $3,474.00 Quick View New Arrival Puretec Hybrid G13 - Triple filter 20" + UV Price $3,744.00 Quick View New Arrival Puretec Maintenance Kit - Hybrid series HR-G8R3 Price $380.00 Quick View New Arrival Puretec Maintenance Kit - Hybrid P series G13 + R11 (HR-G13R11P) Price $743.00 Quick View New Arrival Puretec Sediment Filter 10" - 20mic - PP20LD1 Price $48.00 Quick View New Arrival Puretec Sediment Filter 10" 1mic - MB01LD1 Price $33.00 Quick View New Arrival Puretec Carbon Filter 10" 5 micron - EC05LD1 Price $79.00 Quick View New Arrival Puretec Pleated Sediment Filter 20"- 20mic PP20LD2 Price $80.00 Quick View New Arrival Puretec Melt Blown Sediment Filter 20" - 1 micron MB01LD2 Price $68.00 Quick View New Arrival Puretec Carbon Filter 20" 5 micron - EC05LD2 Price $140.00 Quick View New Arrival Puretec Tannin Reduction Cartridge, 20 inch - TR20MP2 Price $343.00 Quick View New Arrival Puretec Z2 Puremix Inline Underbench Water Filter 1mic. Price $300.00 Quick View New Arrival Puretec PureMix Z7 Underbench Water Filter Unit - 1 micron Price $429.00 Quick View New Arrival Puretec PureMix Z6 Underbench Water Filter Unit - 0.1 micron Price $466.00 Quick View New Arrival Puretec Underbench Filter Z2-R Puremix Quick Twist, 10" 1 Mic Price $147.00 Quick View New Arrival Puretec Ultra Z Platinum Replacement Cartridge Z1-R 0.1 microns Price $214.00 Quick View New Arrival Puretec X7-R Underbench Filter, 1 micron - Puretec Quick Twist Price $181.00 Quick View New Arrival Puretec Underbench Filter Puremix Z6-R Replacement Cartridge 0.1 micron Price $222.00 Quick View New Arrival Puretec Underbench Filter Puremix Z7-R Replacement Cartridge 1 micron Price $196.00 Quick View New Arrival Puretec Quartz Sleeve, suits Hybrid-G/R/P Series - RQS6 Price $260.00 Quick View New Arrival Puretec UV Lamp RL6, suits G/R/P Series Price $250.00 Water Filtration & Purification Protect your household water from contaminants, including bird dropping bacteria, with our advanced filter and UV sterilization solutions. Water Filters and UV sterilizers play a crucial role in maintaining water quality. We offer a wide range of water treatment solutions, including filters, filter systems, and UV purification systems. We provide a routine water filter and UV replacement service to ensure your water system remains in top condition, without you having to remember to change the filters, or service the unit. We come to your property and replace your filters and/or UV bulb on a regular cycle. Call us for details on 09 372 7270 . To choose the correct filtration &/or purification system for your needs, we'll ask you about your current water storage set up, your water pump set up, your family's size, water usage, and general filtration needs. Frequently Asked Questions How do I choose which filter is best for our needs? How often will I have to change the filters? Can I change the filters & UV bulb myself? Yes, you can change the filters and bulbs yourself, or you can have us come out and do it for you (on a schedule if you don't want to worry about letting them get too old. Here's a video showing how to replace water filters. Whenever there is a drop in pressure, or one year has passed, whichever comes first. It's best to contact us to discuss your options. We'll go through considerations such as your water sources, your water usage, and details about your property's structure to determine which filtration system or purification system will suit your needs best. Water Purification & Filtration Information Downloads. Water collection tanks & safe household water by the Ministry of Health NZ (1.4MB)

Bailey Water Tanks are made from tough, lightweight plastic, and are easy to install or relocate on Waiheke Island. From 425L to 30,000L we have the rainwater tank to fit your needs. Waiheke Prices Include GST, Freight (Sealink) to Waiheke ($750 for large tanks), and delivery from our yard to your site (letterbox) 30,000L Classic Bailey Water Tank Price $5,150.00 Most Popular 25,000L Classic Bailey Water Tank Price $4,499.00 13,500L Classic Bailey Water Tank Price $3,899.00 10,000L Classic Bailey Water Tank Price $3,599.00 9000L Classic Bailey Water Tank Price $3,499.00 5000L Classic Bailey Water Tank Price $1,779.00 3000L Classic Bailey Water Tank Price $1,520.00 2100 Classic Bailey Water Tank Price $1,410.00 1800L Classic Bailey Water Tank Price $1,279.00 1000L Classic Bailey Water Tank Price $1,249.00 900L Classic Bailey Water Tank Price $999.00 425L Classic Bailey Water Tank Price $819.00 TankMate WiFi Tank Level Monitoring Sensor Price $595.00 TankMate R3 Tank Level Sensor -4G Spark or ONE cellular connection Price $695.00 The Liquidator - Water Tank Level Gauge Price $315.00 Apex Visiball Water Level Indicator Price $350.00 Hansen High Performance Tank Level Ballcock Price $250.00 Bailey Water Tanks Bailey Water Tanks are made from tough, lightweight plastic. Bailey Water Tanks are crafted from tough, food-grade polyethylene plastic, setting a benchmark with their adherence to the New Zealand standard AS/NZS4766 for upright polyethylene tanks. Built to last, these tanks are resistant to cracking, fading, and rusting, thanks to their robust one-piece construction. Furthermore, it makes them exceptionally strong and easy to clean. They’re also UV-stabilised to withstand the harsh New Zealand sun. We barge water tanks to Waiheke, including a wide range of stocked tanks for quick delivery. Special order water tanks take 4-8 weeks depending on the desired colour. Our Tank pricing includes barge and truck fees, holding your tank in our yard for up to one month free of charge, GST and then delivery to your letter box for any residential address on Waiheke Island on our tank cradle trailer. Rural Delivery addresses and tricky tank locations may incur extra charges. With TANKMAN® Tank and Pump Shop's expertise and exceptional customer service, you can trust that you are making a smart and practical investment for your property. We are the Waiheke Island experts Bailey Water Tanks are easy to install or move. No tank stand is required. We'll roll your Bailey Water Tank into position on your prepared site (a firm foundation with good drainage and no sharp or protruding objects) and stand it upright. On suitable locations, even the largest capacity tanks can be usually manoeuvred by 3 people. If its not possible we can use a hiab truck to lift over your house, or even a helicopter! All water tanks have vented lids and are complete with BSP threaded outlets. Inlets and overflows can be installed in the polyethylene using ordinary tools. Easy to install or relocate on Waiheke Island. Frequently Asked Questions Is a Bailey Water Tank safe for drinking water? Absolutely safe! Polyethylene is food grade approved, and is the same material that is used for water pipes. No. Many companies use polyethylene for packaging of milk, soft drinks etc. In addition, Bailey Water Tanks are not made from recycled or reconstituted materials that may once have contained harmful chemicals. Will my water taste tainted? Over 20 years. All Bailey Tanks are UV stabilised to protect them from the sun and ensure long life. They won’t rot, crack or rust. And since they’re moulded in one piece, there are no joints or weak points where leaks could occur. In addition, the colour is permanently moulded in, so your Bailey Tank will stay looking great. How long will a Bailey Tank last? Will algae grow in my water tank? No. Bailey water tanks are specially designed with water tank grade polyethylene to exclude the light that is necessary for algae growth. Yes. We have full access to the Bailey range, so if you want your tank located under a deck, against a wall or fence, or hidden completely under ground, there are tanks designed specifically for all of those purposes and more. For more information, download this Application Matrix . Do you have any other shapes / sizes / uses? Bailey Water Tank Information Bailey Water Tank Maintenance Manual Bailey Classic Water Tank Brochure Bailey Water Tank Colour Swatches