The line marking means comprises of a channel with an ink feeding system and an overflow control system in fluid connection with the channel which also functions as the ink applicator. The ink feeding system comprises of a reservoir that contains an ink to be delivered into the channel through one or more tubes. A flow control mechanism may be disposed between the reservoir and the channel to control the rate of delivery of the ink into the channel. The overflow control system comprises of one or more tubes that will remove the excess amount of ink from the channel and redeposit the excess ink back into the reservoir or the excess ink may be discarded. If the flow control mechanism has the capability to accurately control the rate of delivery of the ink into the channel, the overflow control system will not be necessary.