Pre-tank filters are installed directly within the ground or mounted above ground (e.g. on a wall) before the rainwater tank.
Pre-Tank Filters can be installed in the ground or directly within a manhole. 3P Technik has developed the 3P Telescopic Extension Tube which can be set to extend access to the filter up to ground level. 3P Telescopic Extension Tubes can be attached together for even larger height differences.
An advantage of pre-tank filters filter is easy accessibility to the filter where easy access into the tank is not possible or where there is no room in the tank for a filter.
Pre-tank filters also allow rainwater to be harvested from larger roof areas.
|Volume Filter with telescopic extension||Garden Filter with telescopic extension||Retention Filter with telescopic extension|
|Twin Filter||Volume Filter VF1|| Garden XL Filter