thinking about it how many plants have you got that u want to build this for basicaly u cut two holes in the side of ur bucket at the top feed the pipe's down in to your resevoir and attach a pump then all you have to do is set a timer and there you go i think thats about right ive never built one my self but ive seen the one's in the shop and it look's easy enough if im wrong trust some one will tell me lol laters man i hope it works out for you peace!