Installation guidelines

Slimline Water Tanks
Properly installed & maintained, your water tank will provide you with many years of service.
It is recommend that clients and/or installers consult with their local council or water authority regarding their specific requirements for the installation the new water tank.
Including boundary lines and other structures or planning zones as well as specific requirements as to who can install them. And there may be requirements unique to your area that are not covered here.
SupaTank tanks are designed to be installed outside the external wall of the home. Usually, the tanks are situated under the roof eave (refer to diagram)
SupaTank recommends that the tanks be sited on ground that is of a very stable nature and has a reinforced (F62 reo mesh) concrete slab.
The tank will hold a substantial amount of water with total weight ranging from approx. 1.1 tonne to approx. 5 tonne and it is imperative that the tank is on a level base.
Once the base has been prepared, SupaTank recommends that the tank be installed by a qualified licensed plumber. If you wish to install the tank yourself, you do so at your own risk. The plumber will conduct all work to install pipe work from the roof gutter, installing a ‘First Flush’ and/or ‘Rainhead’ device (if specified), all over flow pipe work and connection of taps, pumps orother outlets as required.
All SupaTank tanks are supplied with:
• One (1) 400mm diameter Leaf & Insect strainer (supplied fitted with stainless steel screws)
• Three (3) 25mm BSP brass female outlets (supplied fitted)
Each of the above 25mm BSP brass female outlets are moulded into the wall of the tank. You will need to drill out the wall inside the outlet/s from where you want water to flow. There is a ‘dimple’ in the centre of the wall inside the outlet to assist with centering the drill bit or long shanked hole saw. It is suggested that you drill up to a 22mm diameter hole into the wall of the tank outlet for optimal water flow.
When fitting a tap or gate valve use a good quality thread tape to ensure a good thread seal. Be careful not to cross thread or over tighten the tap or gate valve as this may cause damage to the brass outlet.
To install the overflow screen simply drill a 89mm hole (using a good quality 89mm holesaw available from most hardware & plumbing stores) through the vertical face of the tank shoulder from where the water overflow will be directed back into the stormwater system.
Once the hole is drilled, carefully fit the 90mm stormwater overflow pipe into the tank . It is a good idea to secure the pipe with a silicone seal it to make it watertight.

It is recommended that a ‘flap valve’ be fitted (screwed & silicone sealed) to the overflow pipe end to act as a physical air break before draining into a ‘Tun dish’ attached to the stormwater system.
NB: The NSW dept of Health recommend that tanks be desludged every two-three years. For more information visit the NSW dept of Health website at http://www.health.nsw.gov.au/public-health/ehb/water/pdf/rainwatertanks.pdf
To install the overflow screen simply drill a 89mm hole (using a good quality 89mm holesaw available from most hardware & plumbing stores) through the vertical face of the tank shoulder from where the water overflow will be directed back into the stormwater system.

Once the hole is drilled, carefully tap in the overflow screen using a rubber mallet to avoid damaging it. Once the screen is in position, apply a ‘bead’ of roof & gutter silicone sealant between it and the tank to seal it. Fit the 90mm stormwater overflow pipe into the tank . It is a good idea to secure the pipe with a silicone seal it to make it watertight.

It is recommended that a ‘flap valve’ be fitted (screwed & silicone sealed) to the overflow pipe end to act as a physical air break before draining into a ‘Tun dish’ attached to the stormwater system.
NB: The NSW dept of Health recommend that tanks be desludged every two-three years.
For more information visit the NSW dept of Health website