598877 An installation for facilitating water usage comprising take-offs having for each an aperture 4 through kerbing 7 at the side of a road 1 and a passageway, each take-off being at spaced apart locations along the kerbing, which apertures 4 are each arranged to collect at least some of water passing the kerbing directly and a conduit 5 connecting the passageway of each respective take off into a storage chamber 10 within the ground 14. The chamber is adapted to facilitate root growth access thereto.