On Tank
Air Gaps
An Air Gap is a physical break in your tank's overflow line that makes it impossible for stormwater to flow back into your tank. It is an essential safeguard for any tank connected to the stormwater mains.
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Secure your rainwater system
Once water is in your tank, the job is to keep it clean. Sealing your system against pests, light and backflow protects the water you have worked to collect and stops new contaminants getting in.
The 12 Steps of Rain Harvesting™
Frequently asked questions
What size Air Gap do I need?
Where exactly does the Air Gap install?
How do I maintain my Air Gap?
Designed by Rain Harvesting™
Need a tailored system design?
Our specialists can design a complete Rain Harvesting™ system for your property or improve an existing one. You’ll receive a detailed report with everything you need to install and maintain it.
The Handbook
The ultimate guide for help and inspiration to start your rainwater harvesting journey today.