Newb first time loop few questions

[Wisconsin gamer]

So I just filled my first custom loop well I got one of the kits from ekwb and so far no leaks and it’s been awesome so far. However a few things have popped up and I’m sure there’s an answer to them so I’d really appreciate the help.

 

First thing is I notice some kind of whine noise coming from the pump now it’s probably running full bore right now because I’m running it off the jumper that and I can still hear bubbles passing through but will this quiet down under normal use not full speed and when more of the air gets out of the system?

 

second question is even though I cleaned and cleaned and cleaned and went nuts I noticed a few very small dark specks and I did the radiator dance like Carlton from the fresh prince for like hours and still there’s some very small debris should I just drain it and refill I have dedicated rain so it wouldn’t be to much trouble for me to do it. Also to that same note is there anything I should run through it to clean it even better and try to clean it more. 

 

Appreciate the the help I have gotten some really good info on here recently and appreciate it

 

also this is the most fun I’ve had for a while on this build watercooling is a new hobby of mine I’m already thinking of switching to hard tube and putting my gpu under water lol.

 

thanks