Rain Harvesting Filter Pits 
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Rain Harvesting Filter Pits


Screen out leaves and debris at a central point

In some instances it is not practical to fit rain heads under roof gutters or on a wall to pre-filter water headed for the water tank. Filter Pits enable screening to be done at a pit which can be safer and easier to clean than cleaning the screens of rain heads fitted at the roof gutter.  

Filter Pits are extremely beneficial when used in conjunction with underground tanks or where tanks are placed downhill from the building. They are usually placed at a convenient spot in the garden, part way between the building and the tank and are a ‘junction’ where the pipes from around the house meet, and from which the main pipe/s then connect to the storage tank. They handle large volumes of water and come standard with a 1mm insect proof stainless steel screen and an optional junk basket which incorporates a 6mm stainless steel screen.

Filter Pits handle large volumes of rainwater and enable screening to be done at a central point in the system. In some cases they can be safer and easier to clean than rain heads fitted at roof gutters.
Filter Pits come in two sizes (700 x 700 x 700mm and 560 x 560 x 510mm) and come with an insect proof screen and optional junk baskets and pit rise extensions.

Filter Pits require a fall between the building and the top of the tank of at least 750mm depending on the distance of the pipe run between where the pipe enters the ground at the building and the tank. This system will enable the pipes to be connected directly into the wall of the tank which leaves the top of the tank free for other uses.

Importantly, it eliminates the need for a tank screen on top of the tank. This prevents contamination of the tank water via the tank screen and reduces the amount of sunlight entering the tank thus minimising the growth of algae and other bacteria.

Water Diverter/s should be installed down stream of the Filter Pit to prevent the first, most contaminated water, from entering the tank. Fine sediments may pass through the screen of the Filter Pit, and a Water Diverter will further improve water quality.

Pits come complete with Riser and Junk Basket


Price (each):
TAFP01,02 in Grd Filter Pit and Junk Basket560mm.  $298.67 
TAFP0102,03, in Grd Filt.Pit & Riser 560mm.  $418.40 
TAFP04,05,in Grd Filt.Pit & Riser 700mm.  $559.00 

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Rain Harvesting Filter Pits