On Tank
Vent Cowls
Vent cowls let your tank breathe as the water level rises and falls, while their screens keep insects and pests out. Weatherproof options add extra protection from driving rain.
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's the difference between the standard Vent Cowl and the Weatherproof Vent Cowl?
What size Vent Cowl do I need?
Where can I install a Vent Cowl?
How do I maintain a Vent Cowl?
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.