My skimmer is really annoying the life out of me! Last month, when i bought my set up, i purchased a used aqua C skimmer. It came with a rio 800. it does the job, but it is much too loud....at night when im trying to sleep, all i can hear is that low humming/ vibrating noise! At first i learned to deal with it, but now it is driving me insane! I need some advice, as I am sure that I am not the only one who has had this problem....or am i? Today, to try to fix the problem......instead of directly plugging the hole of the rio into the skimmer, i used the rio attachment and added a flexible tubing in between the two openings thinking that it would act as a silencer.....its still vibrates! WHAT IS WRONG WITH MY SKIMMER?!! PLEASE HELP ME!! Im sick of this insomnia!