Fleximake onion tanks are frameless, self-supporting “Onion” shaped tanks that are used for storage of water and other types of liquids. Onion tanks, also known as collar tanks, collar dams, onion bladder tanks and collapsible tanks, are ideal for liquid storage applications that require deployment of tanks in a very short time. Typically, Fleximake onion tanks can be set up by one or two people and be ready for filling in about 10 to 15 minutes. Our tanks are fitted with innovative, circular, self-raising and floating collar, which is made of closed cell foam, for easy filling. This makes Fleximake onion tanks the ideal choice for firefighting, drinking water storage for disaster relief, military operations, spill containment, pool repairs and other situations in need of short term storage. These collapsible reservoirs can be emptied and folded neatly for storage and transportation. Fleximake onion tanks are designed to be tough and made with heavy duty fabrics for on-going use and for longevity. Our tanks can be supplied with a top cover to prevent contamination from outside sources. We manufacture our onion tanks from the highest quality, strong, durable and heavy duty materials suitable for harsh environments in rural, commercial, mining and industrial applications. We have onion tanks manufactured from a range of different materials that are best suited to your water or liquid storage application.

We manufacture all our onion tanks in Australia. We here at Fleximake have the fastest and most sophisticated plastic welding machines in Australia. The modern tech, high speed machines bring us the capability to guarantee you a fast turnaround time regardless of the size of any onion tank. This also means that we can offer you the best onion tank prices as opposed to our direct competitors.