Hi all! I’m new to pool ownership and the forum. We just bought a home that came with an above ground pool. I’m learning a ton about maintenance but have hit a wall identifying the filter positions on my sand pump because the stickers have worn off. Also I have a significant leak in a part that is connected to the pump (a pre-filter perhaps?). Can anyone tell me the positions of each of the filter settings and tell me what part is leaking? (Photos attached). Much appreciated!!