- Remove 3″ fill cap and open vent cap on Black dump cart, Connect hose to tank, the clear transparent orange Rhino adapter goes on the trailer end of the connection.
- Pull Black valve only! And wait for the tank to empty, look down the vent hole on the dump cart to make sure you don’t overfill the cart!
- Once draining has ceased, close Black valve! Open the Grey valve for a few moments to flush the hose.
- Remove hose from trailer end to drain remaining contents still in the hose into the dump cart.
- Reattach hose to trailer, unattach from Black dump cart, and close dump cart 3″ fill cap and vent.
- Switch dump carts, you will be using the Grey dump cart now, connect hose and open vent like before.
- Pull Grey valve, when dump cart fills to about 1 inch from the vent hole close Grey valve, the cart is full and it’s time to switch to the second Grey dump cart.
- Rinse and repeat until all your tanks are empty.
