The polyethylene rising tube is designed for all Rewatec tanks. In addition, it also fits Octagon and Octagon Light tanks. The ascending pipe can be used if the tank needs to be set at a greater depth. The drainage gutters on the pipe prevent surface water from entering the tank. A DN600 gasket should be used between the tank flange and the VS 20 pipe.
The rising pipe is available in black and green. The green colour makes the pipe less visible in green areas.