Protect your rainwater with a RainWatch Filter
Remove harmful contaminants before they settle and decay in your rainwater tank with RainWatch’s Rainwater Tank Filter System. Easy to clean and easy to install. View the pre-tank rainwater filter system installation guide.
RainWatch Filters are manufactured by Doust Plumbing Products (ABN 78 673 277 241), 83 Mercantile Way, Malaga 6090 – Western Australia
“ We have been very happy with our RainWatch filter, it is amazing how much dirt seems to come out of the rain itself not just from the roof surface and how clean it keeps our rainwater tanks”
DK & D Green – Western Australia’
Water is precious.
Massive amounts of clean rainwater can be harvested from our roofs, unfortunately, the rainwater becomes contaminated with pollutants.
Contaminates such as bird droppings that settle on roofs and other pollutants that if not filtered out, are also collected in the rainwater, leaving storage tanks compromised. The RainWatch Rainwater Tank Filter System provides additional protection with our high quality 316 50 micron Stainless Steel barrier screen that keeps out mosquitoes and vermin.
Protect Your Rainwater Collection System
You’ve made a significant investment in your rainwater collection system, so protecting it should be a priority. Unlike basic rainwater filters, RainWatch Filters use a gravity-fed reverse flow cleaning process that delivers effective rainwater filtration while maintaining excellent water capture.
By removing leaves, debris and contaminants before they reach your rainwater tank, RainWatch Filters help keep stored water cleaner, reduce tank contamination, and minimise maintenance. The result is cleaner rainwater harvesting, improved water quality, and greater confidence in the performance of your rainwater harvesting system.
Whether you’re collecting rainwater for household use, gardens or commercial applications, RainWatch Filters help maximise the efficiency and longevity of your rainwater collection system.
No Smelly Rainwater – Most rainwater tank filters have openings larger than 50 microns, allowing insects, leaves, and fine organic debris to enter your tank. As this material breaks down, it can reduce water quality, create unpleasant odours, encourage microbial growth, and increase tank maintenance.
A finer filter helps stop these contaminants before they enter your tank, keeping stored rainwater cleaner, fresher, and easier to maintain from the start.
If you’re using your tank as a source of drinking water, the need for a post-tank sterilisation device still remains. Our pre-tank water filter dramatically increases water purity, so that when you reach the final stage, there is less for your domestic filtration system to work through. It will also make your drinking water taste better.
With our pre-tank filter, you can remove these harmful pollutants before they reach storage areas and pumps, resulting in a cleaner, healthier water supply and reduced time and money spent on maintenance.
The Rainwatch Rainwater Tank filter makes your RainWater Better.

