I hear sloshing sound inside pc water cooling system is that normal?

theocazou

Honorable
Jun 25, 2012
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Ive had my water cooling system (XSPC Raystorm D5 EX360) for almost a year now and I hear a sloshing sound every so often, it usualy happens within 2-5mins of each other and sounds diffrent everytime. I started getting worried thinking I might of done something wrong so i thought I might ask if this is normal. I dont really mind it just thought i would check and make sure its normal.