What type of water tank should I install? Sydney Water recommends a minimum tank size of 5000 L in an urban environment, if you want to use the water for toilet-flushing, the washing machine and in the garden (but not for drinking water). You can choose from round, rectangular (modular) and slimline tanks . Round ones come either upright or squat, which may fit well under decking or the like. Slimline tanks are generally a bit smaller, but are popular with people who have limited space for a tank. Metal tanks are made from corrugated or flat rolled metal and can be galvanised or coated. They often come with a plastic inner lining (Aquaplate) that'll increase the life of the tank and protect the water quality. Polyethylene (poly) tanks are durable, lightweight and available in a range of colours and sizes. In addition they won't break down in sun, usually come with a 25 year warranty, and are made from food grade material so suitable for drinking water. These are the fastest growing types of tanks on the market. Bladder Type tanks are generally more expensive but are ideal where there is space under a house/ deck and hence allow out of sight water storage`. They are also portable and can be taken with you when you move house. |