Auckland Rakino Island Septic Tank and gravity fed Flout dispersal system. Standard single chamber septic tank with solids filter, running through PFP,s new lightweight gravity fed flout dispersal system. This Flout was designed to be lightweight for easy transportation and ease of installation, also adjustable to meet each irrigation fields dispersal requirement as specified by the Envioronmental Engineers report. Easy to install, approx 40kg, adjustable dose volume, fabricated from 12mm HMWPE with all fittings PE or S/S and in compliance with NZ Standards 1547:2000