I have a Hayward pump that has a white plastic tube on the outside of the basket. It says, "this side out" on the tube. I found a small plastic white ball inside the tube that is exactly the right diameter to fit but not move without pushing. I had to use a small rod to push it out. Is that a normal part, or is it something that got caught? I assume it is not normal since I've not seen it before and I also assume you don't want the tube blocked, but it is odd it is the same color and exact size to fit.