I had a new pool installed about 1 1/2 months ago and normally use the BBB method but have been trying to increase CYA so recently added shock to the skimmer slowly and a little CYA I had left. I have been running the filter pump at night and off during the day normally. Recently the pump has increased pressure on the gauge to the "clean filter" mark and decreased output on return. Is it possible the shock and or CYA has not dissolved since I did not run 24/7 or maybe just needs a good cleaning. I would rather conserve the CYA in the filter but am concerned about the 1.5hp motor being under a load.