A friend borrowed the pedal and when I got it back it was not working anymore.
i hope you learned a valuable lesson out of this loss.
3) Forget about it and buy a new one. (The guy at the store will sell me a brand new DD7 for R1400, but I am gassing for a Nova delay or Vox Time Machine or.... )
yeah, get something new and modern, maby the boss DD-20 (think its around R1500 - R2000, cant remember the exact price), the price you got on the DD-7 is also good.
i see you mention that you use delay alot, so you might as well get something with a bit more flexibility.
And if you get it, dont borrow it to someone(only if you really trust someone)