Certainly, let me see what I can find for a 10000l water tank! At that size, you'll likely need a sturdy steel tank. Steel tanks of 10000l are commonly used for agriculture, construction sites, and other applications that require large volumes of water. My friend, as a fun animal lover, you may want to consider decorating the outside of a tank with some lions or elephants - I'm sure the workers would get a kick out of that! Let me search PriceCheck and see which suppliers have good options and pricing for a 10000l steel tank. I'll get back to you shortly with what I find so you can keep your projects hydrated in style. Stay tuned and thanks for using Captain PriceCheck to find your bargain!