These tanks used to contain an acidic cleaning agent and have been cleaned out completely with a neutralizing base wash to like new condition. These are great for storing waste vegetable oil (WVO or SVO), Biodiesel, liquid chemical solutions, water for pressure washers or showering and more. Not recommended for use with drinking water.
The top has a 6" threaded cap which is great for pouring liquids into the tank. The cap also has a 2" threaded cap inside of it so you can attached a hose to the top and pump fluids inside. Be sure to drill a small hole as an air vent in the cap if you choose to do this.
The bottom drain has a 2" ball valve with 2" Male threads for attacking a pipe or hose. The inside of the tent has slight indents to help the fluid find its way to the drain when it is nearly empty.