I've been getting sand in my pool all season, and finally got around to ordering some laterals bc I assumed that was probably my issue. I took the sand out of the filter today and looked at the laterals and I don't see anything, but I'm not exactly sure what I should be looking for?? Will I see a crack or break somewhere if it's the lateral? What I did find was what appears to be a hairline crack in the lateral assembly (the black thing that the laterals attach to). Would that cause my issue? If so, is there a way to repair this? I looked online and intex doesn't sell this specific replacement part for my filter. Thanks