Hello, I was installing my stairs last weekend when one of my very helpful 2 year olds decided she could not see well enough and bumped into me to see what I was doing. Well I was screwing in the last small screw for the stairs. Needless to say the screw fell in the pool and I am not sure where it is. My question is can I throw in the automatic pool cleaner and not worry? Is there a chance that the cleaner would press down on the screw and tear the liner?