Yep. He did describe how to do it...turn off the pump, twist the valve to release the pressure, undo the 'belt', etc...but he didn't actually do it...and then said YouTube was our friend. I wasn't particularly upset about it because a) we already told him we weren't using him to continue maintaining the pool and cleaning the filter wasn't part of his start up and b) he'd already proven himself to be a 'typical pool guy' using test strips, just dumping stuff in, wanted to add salt at 10 days, etc., so, honestly, I'd have pulled up YouTube videos anyway and not tried to clean it based solely on his very brief description. Super nice guy, but...he's a 'pool guy'. ?