First i must say sorry for my english, if there will be some mistakes I apoligize !

Now the problem: My fulltone doesn't work with other pedals. It works properly when I use fuzz directly into the amp. [My amp is Sunn model T (fender one)]. But when I use it with other pedals in loop(i hope it is correctly sayed), the pedal doesnt work correctly: makes noises and crackes. I use independent power line to it so i dont think this is the problem. Does anybody had similar problem? Please help ! and thank You!