SLOT drain plastic clean-out systemSlot drain clean out system is designed to provide you with a possibility to clean your slot drain system from debris and avoid clogging. It consists of two parts, plastic base (installed underground) and slot system itself. The slot can be filled with the same aggregate filler that is used for the project (concrete, gravel, different type of paving, such as asphalt or stone). Since insert and base are separate parts, the insert can be easily taken