Filtration is a crucial part of any rainwater system, whether you’re using it for your garden, household chores, or even drinking water. A well-designed filtration system removes debris, sediment, and contaminants before the water reaches your taps. RapidPlas tanks are designed to work seamlessly with filtration systems, helping you get the most out of your water storage. In this guide, we explain how filtration systems work, the types of filters available, and the benefits of filtered rainwater for your home and garden.

Why Filtration Is Important

• Protects water from leaves, dust, and debris entering the tank.

• Reduces algae growth and sediment build-up.

• Essential for household use and safe drinking water.

• Helps extend the lifespan of pumps, taps, and appliances connected to your tank.\

How a Rainwater Filtration System Works

• Gutter Screens & Leaf Catchers

  • Capture leaves, twigs, and large debris before water enters the tank.

• First Flush Diverter

  • Diverts the initial flow of water from your roof (which may contain dust, bird droppings, and pollen) away from the tank.

• Inlet Strainers

  • Fine mesh screens at the tank inlet remove small particles before water enters storage.

• Tank Filtration / Post-Tank Filters

  • Optional filters (sediment, carbon, or UV) installed at the tank outlet or before taps to further purify water for drinking or sensitive applications.

Benefits of Using Filtered Rainwater

• Safe, clean water for drinking, cooking, and gardening.

• Reduced risk of contaminants and algae growth.

• Peace of mind knowing water meets higher quality standards.

Learn more about the health advantages of filtered rainwater in our detailed guide:
The Health Benefits of Using Filtered Rainwater →

RapidPlas Tanks and Filtration

• RapidPlas tanks are designed to integrate seamlessly with first flush diverters, strainers, and post-tank filtration systems.

• Standard inclusions like stainless steel strainers and overflow protection complement filtration.

• Multiple tank setups can easily be linked, ensuring consistent filtration across connected tanks.

Explore our tank packages with popular filtration options included:

Rainwater tank and filter value packs