Ooops, it happened again at 1:30 am!! I weeded out a ton of water sprite etc today & put a temporary sponge over the intake, cleaned the filter sponges...ok ...for now.,..Aggh! I replaced 1 "off brand" sponge with an genuine old AC;...so far so good? I don't want to continue like this; waking up in the night to check the gosh darn filter. What is different & causing problems now??