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The recommended quantity of aggregate for each tank model is listed in the table below:
Tank Model
RT-25
RT-40
RT-60
RT-80
RT-100
RT-130
RT-160
RT-200
RT-230
RT-275
RT-310
RT-365
Volume of
Aggregate
(20mm) required
0.8m³
1.0m³
1.2m³
1.6m³
2.0m³
2.1m³
2.0m³
2.1m³
Please only use clean aggregate to prevent any risk of corrosion.
Check that there is no vegetation growing around the tank and in the aggregate. A
suitable weed remover or other safe preventative measures can help with this. We
recommend you seek the advice of a qualified professional if necessary.
Leaf filter basket
Remove any debris and leaves from your leaf basket. Also, take the basket out and give it
a good rinse under running water. Make sure it is placed back correctly once cleaned,
preventing any sunlight from entering the tank.
Tank roof
Remove any debris and leaves by sweeping with a long-handled broom or by using a
blower from the ground.
Warning: Walking on the tank roof is not recommended. Please remain on the ground or
use a ladder while cleaning the roof.
Pests, animals and vermin
Look for any signs of pests or vermin activity around or on your tank or liner. If you notice
any damage, this must be attended to urgently. We recommend you seek the advice of a
qualified professional if necessary.
If the tank is located in a paddock with animals, the tank should be fenced off to prevent
animals from hitting fittings which may cause leaks and other damages to occur. Animals
can also erode the tank pad which may void your tank warranty.
First flush (relevant for rainwater harvesting tanks connected to the home)
Cleaning of the first flush keeps it working properly and allows cleaner water to enter the
tank.
Charged lines (relevant for rainwater harvesting tanks connected to the home)
Charged lines can be full of debris and require to be purged to clean.
External tank walls
Cleaning walls regularly will keep the tank looking and performing at its best. A build-up of
surface contaminants can lead to surface corrosion. Use a hose to wash off any surface
build up. Use a soft brush or broom to remove any stubborn dirt and grime. Cleaning
external tank walls is especially important for tanks in coastal locations.
