xP3 Being Really Noisy! anyway to quiet it down?

I haven't had my xp all that long but I found filling the canister with much water was NOT a good idea. It seemed to make it not work with lots of noise & the syphon couldn't start. It doesn't seem right but twice I've dumped out the water & presto! it worked. I thought priming like HOB would be good but no.
I'd also wipe the seals off, in addition to all the other suggestions.
 
Have you taken the motor assembly off, and opened the twist-off door which leads to the impellar? Is there anything stuck inside there, or is the impellar shaft damaged/bent? Seems weird that it would be making noise... I have an XP3 and an XP2 running side by side, and they're very quiet. Nothing more than a very mild hum.
 
i tried taking it apart and everytime i do all of the water spills everywhere! i must be doing something wrong when trying to open it, but i follow the instructions exactly! i looked at the impeller and nothing is wrong with it. i dumped out the water, but the humming is still there. it has gotten a little quieter, but it hasn't become unnoticable.
 
it quieted down A LOT, but my dad still complains that he can here it in the next room and 2 rooms down (all have open walls) while reading the newspaper.
 
First of all, does anything seem normal to your senses? weird sounds from propeller etc? Or is it just a hum, as in refrigerator hum?
 
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