Tank Girl - Sustainable Gardening Australia Footprint Flicks

00:44 The video discusses bladder tanks, which are easily transportable and can be stored under the house. However, they have limited warranties and can take a long time to degrade in landfills, causing environmental concerns.

01:36 The video then explores polytanks, which are made of food-grade high-density polyethylene (HDPE). They come in a variety of colors and sizes, but the quality can vary depending on the manufacturer. HDPE tanks have pros and cons in terms of environmental impact, as their recyclability and manufacturing process contribute to greenhouse gas emissions.

02:46 The next type of tank discussed is steel tanks. They are smaller in size but easier to maneuver, and they have the lowest environmental impact of all the modern tanks. Despite the higher upfront cost, their long lifespan and sustainability make them a more eco-friendly choice.

03:36 The video mentions concrete tanks, which are commonly used by factories and farms. Concrete tanks are fireproof, rustproof, and keep the water clean, but their porous nature makes them susceptible to cracking if tree roots penetrate the structure. The manufacturing process for concrete tanks involves high inputs of steel and concrete, resulting in the highest embodied water, energy, and greenhouse gas emissions.

04:43 The video encourages viewers to think about the long-term costs and environmental impact of their chosen tank type, emphasizing the importance of considering factors beyond just the initial cost. It reminds viewers that conserving water and helping the environment should not come at the expense of other environmental concerns.