H100 pump clicking

[davig019]

I installed my H100 today and the pump is making a clicking noise like a hard drive.

I can stop the noise by flicking the tube but the noise will return after a few seconds, i have also tried turning the case on its side which stops the noise but as i have a full tower case this is not an option for more than an hour or so.

what can i do to get rid of this annoying noise?!

Thanks

[GoNz0]

run it for 24 hours until the air bubbles hide in the top of the rad out of harms way.