Melro 1000lt dedicated under deck rain water tank. Dimensions Height: 630mm, Width: 1200mm, Length: 1600mm. Under deck tanks work in much the same way as a standard domestic tank. However, without ready access to the top of the tank, they come as a sealed unit without an inlet strainer. For this reason, we strongly advise that you install a low maintenance leaf filter at an accessible point part way up your downpipe to prevent debris from entering your tank. As always, clean water into your tank means you'll get clean water out. *Delivery in Melbourne Metro only, Delivery Cost $99.00 After ordering your rain water tank a Malvern Irrigation staff member will be in contact to arrange your tank colour and delivery time frame. Tanks are made to order and generally have a lead time of 1-2 weeks.