Overview Tanks Accessories	Our poly tanks are a one piece construction with the mould parting seam running around the top of the wall. What this means to you the purchaser is that the weakest part of the tank is at the top where there is minimum pressure and force. This is not the case with many other manufacturers. Secondly our tanks are designed with a roof structure that negates the need for centre poles which can be the cause of tank failures. We take pride in the appearance of our tanks which have an eye pleasing gloss surface finish. Tank and Plumbing Rebates For SA Government information and downloadable rebate forms click here > Site Preparation To be eligible for our 10 year guarantee the tank site must meet certain minimum requirements. Round tanks can be sited on concrete or pavers provided that the surface is flat and level with no obvious protrusions. A sand or dolomite base is also acceptable providing it is prepared appropriately. The area should be clear of stones or any objects that may damage the base of the tank. We require 50mm - 75mm of material to be leveled and compacted preferably with a vibrating plate. The base should be a minimum of 150mm larger than the diameter of the tank. Care must be taken to avoid any water runoff or overflow that may tend to undermine the tank base. Slimline tanks due to their less stable nature require a concrete or paver base.