TankVac – The Self-Cleaning Water Tank Vacuum
 
Every rainwater tank slowly builds up sludge on the bottom — dust, leaves, bird droppings and organic material that eventually affects your water quality.
 
Most tank overflows don’t remove it. They drain from the top of the tank first, letting the cleanest water escape while the sediment stays behind.
 
TankVac solves this automatically.
 
When your tank fills and begins to overflow, TankVac creates a natural vacuum that draws water from the bottom of the tank, pulling out sludge, sediment and organic build-up.
 
Each overflow event gives your tank a powerful natural clean-out.
 
No power.
No maintenance.
No moving parts.
 
Just clever engineering that helps keep your rainwater tank cleaner and your water fresher.
 
Install once and let every heavy rainfall do the cleaning for you.
 
Why TankVac Makes Sense
 
• Pays for itself – stops the need for expensive tank cleaning
• Protects your filtration system – removes sludge before it reaches your filters, extending their lifespan
• Improves water quality – prevents the build-up of bacteria-prone sludge on the tank floor
• Automatic cleaning – activates every time the tank overflows
• No electricity required
• No moving parts – reliable design with nothing to wear out or service
• DIY friendly installation – can be fitted by most handy persons.
• Works with existing poly and metal tanks – suitable for new installs and retrofits
• High cleaning powerful vacuum action can flush out sludge at up to 9 litres per second
• Full tank floor cleaning – specially designed base pipe draws away waste evenly across the tank floor
 
What’s included
 
• Pre-cut pipes and connectors
• Installation instructions
 
(PVC glue and silicone sealant not included.)
 
Typical installation
 
Most tanks require a small access hatch to be cut in the top beside the tank overflow to allow installation of the internal pipe and outlet connection. Once installed, the portal hatch is closed or covered to keep the tank secure.
 
Need help installing?
We’re happy to provide tips and guidance before you begin your DIY installation.