Tanks that residential as well as commercial property owners use for water storage are made of varying materials. However, stainless steel tanks are more durable and reliable compared to poly or concrete tanks. A stainless steel water tank is capable of retaining the purity and quality of water much better than other kinds of water storage solutions.SS water tanks have extremely high resistance to heat and corrosion. Water in these tanks stays safe and hygienic for a long time as they maintain the temperature of the stored water in different weather conditions.