Can't tel you how pleased I am with this thing. Got the idea for the method from leet_ownage, came up with the requirements for a mechanism to semiautomate it, built the general structure and highlander did some redstone jujitsu to make it work!
It is fully operated by one lever, when active it sends a pulse to open and close the water pistons. The amazing part is he got the open and close signal to pulse at different lengths of time! Perfecting the amount of time the water needs to flush the planting area and just enougj time to plant more bonemeal!
And if course, I had to add a notelock melodie that plays in unison with the function
It is located by the chicken and cactus farm
I was able to make about 200 orange dye in 5 mins with tons of yellow and extra seeds still