Underground storage tanks are popular because they are out of site. Our range of septic and underground tanks can be used as underground septic or conservancy tanks. It can also be used for the underground storage of rainwater or grey water. Please note that septic, underground and conservancy tanks should be properly installed by qualified builders or plumbers.  You can contact our office for guidelines on how to install these tanks. Septic and underground tanks Click thumbnail to enlarge ROTATIONAL MOULDERS OF TANKS AND CONTAINERS NEL TANKS cc Blackheath Cape Town  Your water conservation partner 6000 L septic, conservancy or underground tank Septic tanks 1000 L 2000 L 1500 L