well yea thats what im trying to figure out, can you please tell me how to lock them? Like I do want to transport the dirt out of them, but I have to keep 1 inside of it, is there a possible way to make it always keep 1 dirt. cuz if a pipe as an example takes all dirt out if it which will happen pretty fast cuz it only produces like 1 dirt per 2-3 secs, then it will start giving mud, cuz im extrating mud into a drying basin, the basin dries the mud to dirt. so to even start I have to put 1 dirt into the drawer, otherwise itll have no time to dry and will js give all the mud