Can I put pebbles on aco drain?

Aco drain around patio leak the water to the ground aco slot drain The ACO HexDrain Brickslot is perfect for Load class A15 channel drain solutions The clever design of the Brickslot allows the channel drainage to be used aco slot drain In this video, the team are installing some slot channel take you through the

acorn pixie slot ACO MultiDrain Brickslot B 125 1 metre channel with 500mm access unit, to allow cleaning, and 500mm galvanised grate integrated into 1 channel,