Thankyou for your reply, Ok, well it's a headless torso holding it's head under arm over a barrel . i want to pump water (with red dye) from the barrel up into the head and out through the mouth where the water will return to barrel (cycle), I want this effect to run when somebody approaches the torso run only for a few secounds then the whole thing to stop and wait for the next person. So basically what I need is a circuit to sense a person, then turn on the pump and play sound for 10 seconds then stop. hope this helps thankyou for your help