Where support columns are to be used as drainage outlets each column has a welded spigot pipe near to the base late as shown in the images. The position of the pipe varies depending if the client requires connection to the main drainage network system above or below ground level. Connection to the steel tube is made by the use of a Hepsleeve connector. The projecting spigot is manufactured of heavy duty mild steel and the column with the attached spigot are both fully galvanised to prevent any possible future corrosion issues. The internal column support area below where the connector is fitted is fully capped and sealed internally to prevent any water or debris build up below the spigots.