I surely wouldn't be able to read the date on the quarter either! I'm sure it is clear enough (you can see every detail in the deep end including the broken tile laying on the bottom), but duraleigh said this time I need to make sure all of the live and dead algae are removed from the pool before stopping the SLAM. That is where I'm not sure. Do I need to wait till I see nothing when I scrub the pool and clean the robot filters or am I good with how it is today? (see above post) I don't want to stop too soon and have to do this a 3rd time.