How do you get ecto-tokens in runescape

you bring bones and pots (two times as many pots then bones) to the ectofuntus by port phasymus, then go upstairs and put the bones in the grinder and collect the dust in pots after they are ground up. second, go to the basement and work you way to the ectoplasm pool and use pots on it to fill them. then you go to the main floor and pray to the ectofuntus. when you prayed with it and you have no more bones and ectoplasm left, have a ghost speak amulet on and talk to a ghost by the door. they give ten ecto tokens for every time you prayed.