Bassballs pedal feedback issues?

[Sdagg1]

I just purchases a used russian sovtek bassballs electroharmonics pedal and i have been experiencing feedback issues with it. If i turn the sensitivity down the feedback doesnt come on as fast but it still happens. Any ideas what is causing this? I am running a microtubes b7 into the bassballs then a tc electronics chorus into a sansamp bbdi. Thanks in advance for the help!

 

[bassbrad]

The BassBalls will indeed feedback if you pump it too hard, have you tried it before the B7?

 

[Sdagg1]

The BassBalls will indeed feedback if you pump it too hard, have you tried it before the B7?

No ill have to try it out at my next rehearsal.