SaltyDog08
Active member
i recently bought a cpr bak-pak from someone to put on my 40. it runs fine but unlike the new bak-paks the outtake is almost like a waterfall instead of having pipe that the water runs out of. it's actually really loud and kind of annoying so i almost regret getting it but i know how much it benefits my tank. if anybody has any ideas on how to make it quieter please let me know. thanks