#$%^&*AU2013100401A420130502.pdf#####10 Abstract A method for retaining a cover over a pile of material, for example stockpiles of gravel, sand cement or other materials that are used in road construction, including the steps of: disposing empty flexible tubes over the cover filling the flexible tubes with water from a source of water under pressure so that the filled flexible tubes are of sufficient weight to retain the cover over the pile during normal wind conditions and draining the flexible tubes of the water prior to their removal from the pile.4/5 02 - L.q Nq N~