Silo 800L Above Ground Tank


About Silo

The Silo 800L above ground tank is one of the newest additions to our water tank range. The tall, slim design allows an easy fit into tight spaces around your home.


1970mm high x 770mm wide. A single Silo holds 800L of water!

  • Perfect for combined attenuation and retention setup
  • Tank grade plastic
  • Built-in leaf strainer and lid unit
  • Includes one tap and bungs
  • 1 x 15mm BSP fitting at bucket height for a tap
  • 2 x 32mm BSP fittings at the base for tank to tank, and tank to pump connection
  • 10-year warranty

For tank and delivery prices, please contact us.

Silo Colour Options

Birch Grey colour kept as stock. Other colours are available on request.


Birch Grey

Slate Grey


Why Choose Silo?


Easy Install

One of the easiest water tanks to install – simple connection to an existing downpipe.


Connect Together

Seamlessly join together individual 800L tanks to create a series of Silo’s to your storage requirement.

Saves Space

One of the tallest, slimmest above-ground tanks with a diameter of 770mm.

Save Water

​A single FenceTank™ holds 1,000L of water! Equivalent to four-days water supply for the average household. You can have as many tanks as your property can accommodate, and your roof can fill.


Tank Grade Plastic

A quality product internationally recognised as the most appropriate grade for New Zealand’s harsh conditions.


Proudly NZ Made, 10 Year Warranty

FenceTank™ is made by Kiwi’s for Kiwi’s. It is designed and manufactured in Penrose, with manufacturing facilities in the Lower North and South Islands.

Rainwater can be collected for reuse outside. It can also be used to wash clothes and flush toilets. This represents 56% of water use for the average household.


A figure that is on par with the average water bill savings from Hobsonville Residents who collect rainwater for the same purpose via using a WaterSmart solution.


It is possible to use rainwater entirely, although this may require additional filtration for hygienic purposes (drinking, showering, dishwashing etc.). If you plan to connect a tank to your internal plumbing, you will require a building consent.


Get in touch with your local council for specific information related to your area.

This depends on the size of your roof. The following estimate is based on an average roof area of 200 sqm in each of the main regions –

  • Auckland – an average of 17,000L per month
  • Hamilton – an average of 18,000L per month
  • Wellington – an average of 20,000L per month
  • Christchurch – an average of 9500L per month

Use our rainwater collection calculator for an estimate of what you could collect.

This depends on what you use your rainwater for. If it’s outdoor use, you could save on average 18%. But of course, you could save considerably more if you have a pool, boat or water gardens and lawns frequently.


If you have rainwater plumbed back into your house to wash clothes and flush toilets, this amount can jump to 56%.


You can use rainwater for everything, although this may require additional filtration for hygienic purposes (drinking, showering, dishwashing and so on).


If you plan to connect a tank to your internal plumbing you will require a building consent. Get in touch with your local council for specific information related to your area.

Silo FAQ's

Yes, Silo must be installed on a levelled concrete slab at least 100mm wider and longer than the tank or tank group.

Only simple, annual cleaning is required to maintain the Silo exterior. Use a soft bristled brush, water, or water mixed with a mild detergent to wash the plastic. When used to store non-potable water, the interior of the tank does not require any maintenance since the use of leaf guards etc will remove vegetation before entering the tank.


It is probable that small amounts of dust or similar will enter the tanks, but the amounts will not impact on the storage or capacity of the Silo tank.

Any keen DIYer (with the correct tools) can install Silo when the water collected is only intended for outdoor use. Silo must be installed by a registered plumber, such as WaterSmart, if the water will be used inside the home, (such as in the toilet and laundry). Contact WaterSmart to find out more.

Yes, a tap can be installed near the base of the tank to gravity feed a tap. Although this will initially provide good pressure this will significantly reduce as water level lowers.

Yes, WaterSmart can provide this service for you! Although a competent home handyperson with the right tools can do this.

Ready To Collect Your Own Water Supply?

Get started by requesting a free consultation!