I followed ALL of the instructions posted here for cleaning my filters (set of 4), even buying the right nozzle, but was very frustrated! In order to clean all the gunk between every pleat I would have to widen the gap using a finger, which inevitably resulted in the band coming unglued to most of the pleats, and a few bands even breaking. If I just pointed the nozzle at the pleats, even at a 45 degree angle, only the outside of the pleats would be cleaned. What am I not doing right?? (I'm using Hayward filters, the pleats are about 1.5" deep, there are 5 thin bands around the middle area and less than 4" between the bands.) Thank you!