Hey guys, I just installed a 1/6 HP Resun Chiller on my tank and there's a loud gurgling noise coming from inside of it constantly. I'm not talking about when the thing kicks on, but all the time as the water is pumped through it. Is this normal? I've never run a chiller before and the noise is really loud and distracting... much louder than my entire system. I'm hoping there's a way to get it quieter.