Fuzz noise

Hello all. Disclaimer, I know fuzz pedals are inherently noisy. Lol… I am running 4cm, fuzz pi block in front of the amp, noise gate on at the input. Im getting a lot of noise when I’m not playing. I’m thinking it’s due to the “send” volume in the FX loop block? I’m at work and can’t try it out right now. Just wanted to know if anyone can lead me in the right direction? Thanks!