A ball valve is a shut off valve that controls the flow of a liquid. By a rotary ball having a bore. By rotating the ball a quarter turn (90 degrees) around its axis, the medium can flow through or is blocked. A threaded valve made from stainless steel.

Attached to desired bucket/tank.
When looking to empty, turn the handle to the ‘on’ side and the liquid will flow through.
When finished, turn handle to ‘off’ side to stop the flow.