Hi everyone

I just bought a Big Muff pedal for Christmas but seem to be having problems with it and was wondering whether anyone here can help me? What’s happening is that when I use the pedal I actually seem to lose volume. In fact, you can barely hear anything at all. I’ve put in a new 9v battery and that hasn’t helped at all. I’m using a Epiphone Dot and Line 6 Flextone 3 amp. I’ve swapped out the pedal with a digital delay pedal and that’s working fine, but when I then change it back to the Big Muff, same problem, no sound. Any ideas or help appreciated.

PS Also tried the pedal with a Fender Tele and exactly the same problem.